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• Proxy Appliance

  - by Kumar

  I'm looking for a way to set-up a web proxy at home. Hopefully there's a solution I can use to do this. Alternatively, do you have any ideas for setting up one at home using a proxy with an auto updating list? UPDATE - AutoUpdating list so the new sites are categorized and downloaded and the filtering is done by category instead of per site e.g. peerblock works this way Appliance as in a small dedicated hardware or device to perform this task, like WD TV live or Acer Aspire Revo with the media center edition I'd be ok with setting up Squid / Linux / SquidGuard even if i'm not familiar with *nix but ideally a small form factor pc with dual nic's would be ideal so it can be out of sight for the most part !

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• spoolsv.exe consumes all CPU and RAM resources

  - by pcampbell

  Consider a Windows 7 x64 installation with 2 printers installed. The system has 8GB installed RAM. One printer is a Brother laser MFC-8220 Printer via TCP/IP, and the other is a CutePDF printer. Problem: the spoolsv.exe regularly eats obscene amount of memory and CPU when the machine is idle. Usually the device is powered off. Turning it on has no effect on the RAM or CPU usage. The first consideration was that perhaps a print job has previously been sent to the Brother, but the queues are empty, and no jobs are waiting. These screenshots do not show, but regularly the spoolsv service will consume all 8GB and climb to use 95-100% of the CPU. The two printers - a Brother and the CutePDF printer both have 0 documents in their respective queues. Question: what measures can I take to ensure the spoolsv.exe doesn't consume inappropriate amounts of CPU and RAM?

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• SElinux stopping LVS from working with https

  - by J Hoskins

  LVS/piranha is setup and trying to get it to balance https instead of http. Setup https testing with wget - idea from this link. Works when I do it at the command prompt. With SELinux enforcing, the wget fails to run due to the lack of access to /dev/random. (Error - Could not seed PRNG; consider using --random-file. Disabling SSL due to encountered errors.) wget runs as system_u:system_r:piranha_lvs_t:s0 but the file/device /dev/random has system_u:object_r:random_device_t:s0 Also, wget is trying to getattr and read. How do you allow wget to use /dev/random so it will do ssl?

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• using flock in bash, why does killing a child process kill the parent process too?

  - by Robby

  In the code snippet below, I want the script to be limited to only running one copy at a time, and for it to restart server.x if it dies for any reason. Without flock involved, the loop correctly restarts if I kill the server process, but once I use flock to ensure the script is only running once, if I kill server.x it also kills the parent process. How can I ensure that killing the child process in a flock script keeps the parent around? #!/bin/bash set -e ( flock -x -n 200 while true do ./server.x $1 done ) 200>/var/lock/.m_rst.$1.lock

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• Restoring an Exchange 2010 user's calendar without rest of mailbox

  - by AlamedaDad

  I am trying to restore a user's calendar from backup, which was deleted by a sync problem on her mobile device. I've been able to restore her mailbox without a problem but I had to link it to a new AD user since she deleted the calendar several days before she reported the problem and the current backups of her account didn't include any calendar events, but all of her current email. I had to restore the mailbox from the day before she deleted everything. I've tried sharing the calendar and opening it in her account, then copying or moving the contents, but I get an error that outlook can't do the task because there are personal items. I tried bringing up the "Recovery User" I created, in Outlook and exporting the calendar events to a .pst, then importing them into the user's real account, but they all get created in a sub-folder called "Recovery User." In case it matters, she's running Outlook 2010 and we're using Exchange 2010 SP1. Thank in advance for help with this problem...Michael

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• Huawei b260a gsm modem not forwarding gre for pptp tunnel

  - by Priit

  I have a huawei gsm modem that does not want to let gre through. The goal is to connect into a pptp server thats behind the huawei. In the modems port forwarding settings theres a ready made profile for pptp (1723). After activating that the MS pptp test tools show that connection is being initiated but no gre packets make it to the server. After taking a closer look into the modems iptables rules theres nothing in there about gre. So I tried making gre rules manualy into forward and preroute chains without any success what so ever. As far as I can tell theres no ip_gre module present on the device is that needed for gre forwarding? Thats what I'm afraid of that it doesn't support gre in NAT but how would I turn it into a bridge? The wan interface is ppp0 so bridging it with eth0 would not work right? Is there some iptables rule I could use to make the modem let all the traffic just straight through?

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• Latency in Sending and Receiving Files From Amazon EC2 - Justification

  - by Adroidist

  I am facing a huge delay while uploading and downloading files from my Windows Amazon EC2 server to my android device. It takes around 50 seconds to upload then download 500 Kbytes image. My location is in asia and the server is is US-East. I pinged the server from my android and obtained values around 500 ms for RTT. Is this normal? How is this explained? I tried this website: http://cloudharmony.com/speedtest/run and obtained that downloading 270 Kbytes file takes around 20 seconds. How is this delay justified?

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• IDE <-> SATA Adapter Issue - Hard Drive Not recognized

  - by nicorellius

  I was trying to use one of these IDE to SATA adapters (Syba SD-ADA50016 IDE/SATA Converter Bi-directional IDE to SATA) and I connected a working hard drive (Seagate Barracuda 500 GB SATA 3.5 Inch 7200 RPM Version 12 Desktop Internal Hard Drive ST3500418AS). I could get the drive to be recognized by the BIOS, but I couldn't boot a Linux disc or install to the drive. I tried to install pfSense to this drive and the install failed because the setup couldn't recognize the file. Has anyone heard of these adapters giving trouble and/or not working properly? I would like to be able to use this device for newer drives on older boards.

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• psloggedon timeout question

  - by user60707

  I have a list of machine names from my network that I have put in a batchfile to run through the list and show me who is logged onto each. psloggedon \machineA psloggedon \machineB psloggedon \machineC psloggedon \machineD psloggedon \machineE psloggedon \machineF Psloggedon works fine, however when it hits a machine that isnt actually on the network, it hangs for a good 30 - 60 seconds before moving onto the next machine...I was just wondering if there was any way to speed this up so that if it hits a machine that isnt on the network, it moves onto the next machine in the list much quicker. I have read in other places that this could be possible by adding a ping -n loop into the command but im not sure how to get that to work? any ideas guys? Many thanks in advance. Jimmy

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• Outlook activesync not pushing changes to devices

  - by Ryan Peters

  I recently set up my account outlook.com account and connected Outlook 2013 to it using ActiveSync. For a while, it was pushing changes I made, for example, from the web client to my phone and my Outlook when an email was deleted, moved, etc. The change was instant. Now all of a sudden, I have to manually refresh to see changes on either device. What happened? I just set up my wife's email account and it works fine, though she has no emails in it yet. I have several hundred. Why is mine not pushing sync changes and hers is? Thanks.

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• Unhappy with performance of GBit Ethernet to Fiber converter

  - by Aaron Digulla

  I just bought a TP-Link MC200CM GBit Ethernet (1000-T) to Fiber (1000-SX) media converter. The device works but I'm unhappy with the performance: When connecting my computer over 1000-T (twisted pair, Cat 6, 18meters) with my server, I get a throughput of about 610MBit/s. If I replace the cable with two media converters, I'm left with about 310-315MBit/s (i.e. half the performance). My setup is like this: Computer <- GBit switch <- long cable <- GBit switch <- server Computer <- GBit switch <- MC200CM <- 30m fiber <- MC200CM <- GBit switch <- server Is there a way to improve the performance? Will another MC be faster? Or is that about as much as I can expect with the additional 2 converters?

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• rhel/centos vs. ubuntu (possibly other debian-based systems) linux in handling duplicate ips in the same subnet

  - by johnshen64

  This has bothered me for quite a while but I never found out why or how to change the behavior. ip duplicates could be caused by typos or dhcp errors etc., but they do occur from time to time. in rpm-based systems such as centos, the old server with the duplicate ip wins, and the new server will get an error in bringing up the nic (ip address already used). this is somewhat harmless because we can just fix the system that is coming up. ubuntu only the other hand happily grabs the used ip for itself and leave the old server/device without a valid ip. this is the more dangerous behavior because it causes outages. what i want is to change the ubuntu behavior to that of the centos/rhel so would appreciate any help.

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• Macro keeps crashing need to speed it up or rewrite it, excel vba 50,000 lines of data

  - by Joel

  Trying to speed up a macro that runs over 50,000 lines ! I have two ways of performing the same vba macro Sub deleteCommonValue() Dim aRow, bRow As Long Dim colB_MoreFirst, colB_LessFirst, colB_Second, colC_MoreFirst, colC_LessFirst, colC_Second As Integer Dim colD_First, colD_Second As Integer Application.ScreenUpdating = False Application.DisplayStatusBar = False Application.Calculation = xlCalculationManual Application.EnableEvents = False aRow = 2 bRow = 3 colB_MoreFirst = Range("B" & aRow).Value + 0.05 colB_LessFirst = Range("B" & aRow).Value - 0.05 colB_Second = Range("B" & bRow).Value colC_MoreFirst = Range("C" & aRow).Value + 0.05 colC_LessFirst = Range("C" & aRow).Value - 0.05 colC_Second = Range("C" & bRow).Value colD_First = Range("D" & aRow).Value colD_Second = Range("D" & bRow).Value Do If colB_Second <= colB_MoreFirst And colB_Second >= colB_LessFirst Then If colC_Second <= colC_MoreFirst And colC_Second >= colC_LessFirst Then If colD_Second = colD_First Or colD_Second > colD_First Then Range(bRow & ":" & bRow).Delete 'bRow delete, assign new value to bRow colB_Second = Range("B" & bRow).Value colC_Second = Range("C" & bRow).Value colD_Second = Range("D" & bRow).Value '----------------------------------------------------- Else Range(aRow & ":" & aRow).Delete bRow = aRow + 1 'aRow value deleted, assign new value to aRow and bRow colB_MoreFirst = Range("B" & aRow).Value + 0.05 colB_LessFirst = Range("B" & aRow).Value - 0.05 colB_Second = Range("B" & bRow).Value colC_MoreFirst = Range("C" & aRow).Value + 0.05 colC_LessFirst = Range("C" & aRow).Value - 0.05 colC_Second = Range("C" & bRow).Value colD_First = Range("D" & aRow).Value colD_Second = Range("D" & bRow).Value '----------------------------------------------------- End If Else bRow = bRow + 1 'Assign new value to bRow colB_Second = Range("B" & bRow).Value colC_Second = Range("C" & bRow).Value colD_Second = Range("D" & bRow).Value '----------------------------------------------------- End If Else bRow = bRow + 1 'Assign new value to bRow colB_Second = Range("B" & bRow).Value colC_Second = Range("C" & bRow).Value colD_Second = Range("D" & bRow).Value '----------------------------------------------------- End If If IsEmpty(Range("D" & bRow).Value) = True Then aRow = aRow + 1 bRow = aRow + 1 'finish compare aRow, assign new value to aRow and bRow colB_MoreFirst = Range("B" & aRow).Value + 0.05 colB_LessFirst = Range("B" & aRow).Value - 0.05 colB_Second = Range("B" & bRow).Value colC_MoreFirst = Range("C" & aRow).Value + 0.05 colC_LessFirst = Range("C" & aRow).Value - 0.05 colC_Second = Range("C" & bRow).Value colD_First = Range("D" & aRow).Value colD_Second = Range("D" & bRow).Value '----------------------------------------------------- End If Loop Until IsEmpty(Range("D" & aRow).Value) = True Application.ScreenUpdating = False Application.DisplayStatusBar = False Application.Calculation = xlCalculationAutomatic Application.EnableEvents = False End Sub or Sub deleteCommonValue() Dim aRow, bRow As Long Application.ScreenUpdating = False aRow = 2 bRow = 3 Do If Range("B" & bRow).Value <= (Range("B" & aRow).Value + 0.05) _ And Range("B" & bRow).Value >= (Range("B" & aRow).Value - 0.05) Then If Range("C" & bRow).Value <= (Range("C" & aRow).Value + 0.05) _ And Range("C" & bRow).Value >= (Range("C" & aRow).Value - 0.05) Then If Range("D" & bRow).Value = (Range("D" & aRow).Value) _ Or Range("D" & bRow).Value > (Range("D" & aRow).Value) Then Range(bRow & ":" & bRow).Delete Else Range(aRow & ":" & aRow).Delete bRow = aRow + 1 Range("A" & aRow).Select End If Else bRow = bRow + 1 Range("A" & bRow).Select End If Else bRow = bRow + 1 Range("A" & bRow).Select End If If IsEmpty(Range("D" & bRow).Value) = True Then aRow = aRow + 1 bRow = aRow + 1 End If Loop Until IsEmpty(Range("D" & aRow).Value) = True End Sub I dont know if my best option will be to split the rows into multiple sheets?

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• RAMDiskVE keeps causing computer to freeze

  - by Steph

  I found this in the Event Viewer logs: The description for Event ID 11 from source RAMDiskVE cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer. Which doesn't say much. The details don't reveal much more: Failed to read configuration information from registry. 0000000002002C00000000000B0007C0000000000000000000000000000000000000000000000000 So my question is, what is RAMDiskVE and what device is it for? Basically I'm trying to rule out hardware but I have no idea what's failing...

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• mplayer dumpstream sometimes fails

  - by User1

  I'm trying to rip the video at http://videolectures.net/ecml07%5Fgetoor%5Fisr/, so I can play it at a faster speed. I paste http://193.2.4.216/2007/pascal/ecml07%5Fwarsaw/getoor%5Flise/ecml07%5Fgetoor%5Fisr%5F01.wmv into a firefox browser in Windows and MediaPlayer plays the thing. However if I try mplayer -dumpstream, it gets stuck into an infinite loop trying to play the file. If I use wget to download the link, I get a small text file which basically points to the same URL. How can I get mplayer to download this stream?

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• Cannot format SD memory card

  - by cool

  Hello everyone I have a SD memory card which is of local manufacturer it allows to read & copy from it but not write as it is now write-protected so i want to format that card but could not. To format this card I have tried 1) DD command 2) mkfs -f vfat command 3) creating registry entry under storage device policy in window with write value 0 4) disk part command in window to clear attributes in which it show all attributes are clear ie no write protection 5) I format card in windows through control panel - administrative tools- computer management - disk management, then it show as formatted but when I tried to create new partition it give CYCLIC REDUNDANCY CHECK error 6) I downloaded a format utility from transcend site and formatted first it shows write protected again doing format it formats and tells to remove and reinsert after reinsertion it shows the previous data as it is

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• Proper network configuration for a KVM guest to be on the same networks at the host

  - by Steve Madsen

  I am running a Debian Linux server on Lenny. Within it, I am running another Lenny instance using KVM. Both servers are externally available, with public IPs, as well as a second interface with private IPs for the LAN. Everything works fine, except the VM sees all network traffic as originating from the host server. I suspect this might have something to do with the iptables-based firewall I'm running on the host. What I'd like to figure out is: how to I properly configure the host's networking such that all of these requirements are met? Both host and VMs have 2 network interfaces (public and private). Both host and VMs can be independently firewalled. Ideally, VM traffic does not have to traverse the host firewall. VMs see real remote IP addresses, not the host's. Currently, the host's network interfaces are configured as bridges. eth0 and eth1 do not have IP addresses assigned to them, but br0 and br1 do. /etc/network/interfaces on the host: # The primary network interface auto br1 iface br1 inet static address 24.123.138.34 netmask 255.255.255.248 network 24.123.138.32 broadcast 24.123.138.39 gateway 24.123.138.33 bridge_ports eth1 bridge_stp off auto br1:0 iface br1:0 inet static address 24.123.138.36 netmask 255.255.255.248 network 24.123.138.32 broadcast 24.123.138.39 # Internal network auto br0 iface br0 inet static address 192.168.1.1 netmask 255.255.255.0 network 192.168.1.0 broadcast 192.168.1.255 bridge_ports eth0 bridge_stp off This is the libvirt/qemu configuration file for the VM: <domain type='kvm'> <name>apps</name> <uuid>636b6620-0949-bc88-3197-37153b88772e</uuid> <memory>393216</memory> <currentMemory>393216</currentMemory> <vcpu>1</vcpu> <os> <type arch='i686' machine='pc'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> </features> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/bin/kvm</emulator> <disk type='file' device='cdrom'> <target dev='hdc' bus='ide'/> <readonly/> </disk> <disk type='file' device='disk'> <source file='/raid/kvm-images/apps.qcow2'/> <target dev='vda' bus='virtio'/> </disk> <interface type='bridge'> <mac address='54:52:00:27:5e:02'/> <source bridge='br0'/> <model type='virtio'/> </interface> <interface type='bridge'> <mac address='54:52:00:40:cc:7f'/> <source bridge='br1'/> <model type='virtio'/> </interface> <serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target port='0'/> </console> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='-1' autoport='yes' keymap='en-us'/> </devices> </domain> Along with the rest of my firewall rules, the firewalling script includes this command to pass packets destined for a KVM guest: # Allow bridged packets to pass (for KVM guests). iptables -A FORWARD -m physdev --physdev-is-bridged -j ACCEPT (Not applicable to this question, but a side-effect of my bridging configuration appears to be that I can't ever shut down cleanly. The kernel eventually tells me "unregister_netdevice: waiting for br1 to become free" and I have to hard reset the system. Maybe a sign I've done something dumb?)

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• Buildcraft Minecraft mod causing crashes, NVIDIA-304xx Linux Drivers, KDE

  - by wolfo9999

  All is perfect, 96 fps average. Until an item tries to enter a buildcraft pipe. Tekkit instantly crashes, no error dialog. I have no idea what logs to look at for information on the crash, or how to fix it. OpenGL is enabled in KDE, Driver package is nvidia-304xx lspci output: VGA compatible controller: NVIDIA Corporation GT218 [Quadro FX 380M] (rev a2) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device 172b Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at d2000000 (32-bit, non-prefetchable) [size=16M] Memory at c0000000 (64-bit, prefetchable) [size=256M] Memory at d0000000 (64-bit, prefetchable) [size=32M] I/O ports at 5000 [size=128] [virtual] Expansion ROM at d3080000 [disabled] [size=512K] Capabilities: <access denied> Kernel driver in use: nvidia

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• How to automate changing my ip?

  - by callisto

  I am very new to OSX. I will use my MBP at work and home. I would like to be easily able to switch my ip when changing location. Thus far I have dabbled with the automator, hoping to do something like this: [pseudocode] If IP = 192.168.0.10 root# changeip 192.168.0.10 10.0.0.15 else root# changeip 10.0.0.15 192.168.0.10 The reason for this is that my IP from home will not allow me access at work and vice versa. I have friends and family who drop in now and then, multiple wireless devices set up for the home IP range. Changing all of that to accommodate one new device (the Macbook) would make me reconsider my foray into OSX. I'd rather have the MBP adapt to me than I to it.

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• Recovering drivers from previous installation?

  - by Walkerneo

  Yesterday I bought a new computer and I've been setting it up since this morning. The hard drive came with windows 7 home premium (x64) installed, but I decided to instead install windows 7 ultimate (x64) - this is what I'm currently using. Unfortunately, there were some drivers that were installed that I need in this installation. I only notice because the computer doesn't have the ethernet drivers, so I'm only able to connect to the internet via wireless. There are other drivers missing as well, but I'm not yet seeing the effects. I still have the Windows.old folder with the previous installation, which has the drivers. Is there any way to copy the necessary ones over? I tried the options for updating driver software through device manager with the path set to System32\drivers of the old installation, but it didn't find anything.

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• Can't Install Windows 2008 R2 on Lenovo Laptop With SSD

  - by Ben

  I am trying to install Windows Server 2008 R2 on a new Lenovo X201 or T410 laptop. Setup halts with the following pop-up: A required CD/DVD device driver is missing. If you have a driver floppy disk, CD, DVD, or USB flash drive, please insert it now. Note: If the windows installation media is in the CD/DVD drive you can safely remove it for this step. The CD drive is obviously working, as it's booting from CD to get to this point. The only thing I can think is that it is to do with the fact they have SSD disks in - but that's just a guess.

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• Event ID 8021 The browser was unable to retrieve a list of servers from the browser master

  - by Ash

  We have a LAN where workstations are randomly losing network connectivity for brief moments of time. The workstations can also take a long time to login to the domain. During our troubleshooting we have found an error log on a few Windows 7 workstations: Warning BROWSER 8021 The browser was unable to retrieve a list of servers from the browser master \\random-pc on the network \Device\NetBT_Tcpip_{BBABCDE9-D8A0-4399-93F2-492FE0848B12}. The data is the error code. What do these errors mean? What computers should have the Computer Browser service enabled, workstations and/or servers? The environment is a mix of Windows 7 & Windows XP workstations on a Windows Server SBS 2011 SP1 domain.

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• Wiping out user and/or root password in embedded linux

  - by TryTryAgain

  We have a security camera system running an embedded linux. It boots with Lilo as a bootloader and has no tty access once booted. I don't know any username either. SSH/22 is open, but I don't think brute force is an option. I have tried all the common tricks to reset a linux user password (boot from the bootloader in single user mode = doesn't happen, still prompts for user login, boot to a live cd = can't access the file system...it's all loop files and other binary, etc etc), but they are all not possible as it is an embedded linux setup the way it is. Any help/suggestions would be appreciated. Thanks

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• What is the difference between DLNA and UPNP ?

  - by David Michel

  Hi All, Can someone tell me the what is the difference between DLNA and UPNP ? I can see that some devices such as NAS have their specifications mentioning both (e.g. Iomega StorCenter) or only DLNA (e.g. Netgear Stora). Is this a synomym for the same thing or is is actually 2 different protocals ? Are they compatible, i.e. if a media server uses DLNA and the streaming device uses UPNP, will it work ? I looked around but could not find any clear answer... Many thanks David

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• iPhoto fails to see my new iPhone 3Gs

  - by Alexey Kulikov

  Two weeks ago I have bought the new iPhone 3Gs. It synced like charm with iTunes and I was happy until a couple of days ago when I noticed that there was absolutely no way I could get any photos from the phone to my mac, as it doesn't even appear in the device list. Long story short — i have even tried resetting Leopard completely from scratch (and formatting the HD beforehand). Still no joy. Leopard Snow 10.6.1 absolutely clean install with all updates iPhone 3Gs 3.1.2 - syncs like charm with iTunes, but NOT iPhoto Mac Book Air Any help will be greatly appreciated! update: It works with my old iphone, why can't the 3Gs work?

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