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• Visual Studio 2010 Graphic Artifacts

  - by jonathan

  This problem started happening to me once I installed SP1 onto my Windows 7 Ultimate install. When changing between tabs, or even just hovering my mouse over buttons, VS2010 starts artifacting. It's bad enough where I often times can't see any of the code I'm working on. Sometimes just the button the mouse is over will go black, and other times the entire code panel will turn a black and grey pattern. This problem only happens with Visual Studio 2010 (2008 works fine). The problem remained when I upgraded Visual Studio to SP1. I've also uninstalled and reinstalled Visual Studio and the graphics drivers several times now, and I'm about ready to reinstall Windows 7, but I figured I'd ask for suggestions first. Google, as well as searching through Stack Exchange, did not turn up anything useful.

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• Xen Disk Performence Issues

  - by user98651

  I'm currently using Xen PV on CentOS 5 with my domU's as flat files running on a hardware RAID controlled (write cache enabled) formatted with XFS. On the dom0 I can get about 500MB/s in a 2GB dd write from /dev/zero however on the domU's I'm lucky if I get 10MB/s (it is usually around half that). I've tried changing the disk scheduling to NOOP on the domU's, changed some mount parameters and tweaked the performance allocations of both the dom0 (prioritize CPU) and domU's (increase RAM and VCPU allocations). None of these steps have produced any noticeable change in performance. My instinct here is that it is not a hardware problem, due to the solid performance of the dom0. Any ideas on what might be causing this problem? I'm considering moving to LVM based domU's.

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• Can a custom DPI setting be applied to Remote Desktop sessions?

  - by sejong

  Can a custom DPI setting be applied to Remote Desktop sessions? When you try to change the DPI from a Remote Desktop session, you get a message that display settings can't be changed from a remote session. That made me think that changing DPI from a console setting would work. It did, sort of. If I connected via Remote Desktop to an existing console session with a custom DPI setting, that setting would be applied to the Remote Desktop session. However, if I logged off that session, the custom DPI would not be applied to subsequent Remote Desktop sessions even though it was maintained for subsequent console sessions. It looks like the registry value HKEY_CURRENT_USER\Control Panel\Desktop\WindowMetrics\AppliedDPI (and perhaps other values) is overwritten at logon, but I haven't been able figure out how to prevent it.

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• What is the Optimal Server Configuration for Split-Path Testing?

  - by doug

  I am far from an expert on Apache or any server for that matter, so i apologize if this question is poorly worded, which it likely is. We have always relied on a vendor for split-path testing (aka "AB Testing"). If you're not familiar with that term, it's a form of marketing research in which you slightly modify one of your web pages (usually one nearest the point of conversion), say for instance, by changing the position of the "Buy Now" button or its color/contrast/texture, then serving one of those two pages to a given user based on random selection. By doing split-path testing ourselves, I suspect we can do it far more cheaply and increase cycle times as well. What is the optimal set-up for these tests? "Optimal" is based on the following criteria: how quickly/easily new tests can be set-up and put online; and minimal disruption to overall site performance

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• How do I change the console resolution of Ubuntu 9.10 Server running on VMWare?

  - by Raam Dev

  I'm running Ubuntu 9.10 Server in VMWare Fusion (on a Mac) and I'm having trouble changing the console resolution. It seems to be stuck on 640x480. Ubuntu 9.10 uses Grub2, so there is no /etc/grub/menu.lst. I tried adding vga=791 to the kernel parameters (both during boot and by adding it to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub and then running update-grub2) and neither had any effect. When using vga=791, grub says that vga=791 is depreciated and that I should use gfxpayload=1024x768x16,1024x768 instead. However, that also does absolutely nothing. I have a feeling this problem is specific to running Ubuntu 9.10 in VMWare, but Google hasn't turned up anything.

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• Combine OS partion with data partition on NAS4Free/FreeNAS

  - by Pak

  I recently built a NAS4Free (formerly FreeNAS) machine using a 256MB (yes, MB) USB drive for the OS. When I did the original install, I had the bright idea of making the OS partition just big enough for the OS and a then creating a second partition using the remainder of the drive to store stuff pertaining to the OS. I never really found a use for the data partition and I ended up running out of space on the OS partition, so now I'd like to combine the partitions into a single partition. Is this something that is possible to do while everything is up and running? If it comes down to it, I can take down the machine and do a fresh install of the OS using the entire space of the USB drive, but I'd like to use this as an opportunity to better familiarize myself with FreeBSD/UNIX type systems. If this is possible, will it interfere with the NAS4Free things? The data partition shows up in the web interface under the disks section. If I end up manually changing the partitions, I'd be concerned with NAS4Free getting confused by the missing partition.

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• Case in-sensitivity for Apache httpd Location directive

  - by user57178

  I am working with a solution that requires the usage of mod_proxy_balancer and an application server that both ignores case and mixes different case combinations in URLs found in generated content. The configuration works, however I have now a new requirement that causes problems. I should be able to create a location directive (as per http://httpd.apache.org/docs/current/mod/core.html#location ) and have the URL-path interpret in case insensitive mode. This requirement comes from the need to add authentication directives to the location. As you might guess, users (or the application in question) changing one letter to capital circumvents the protection instantly. The httpd runs on Unix platform so every configuration directive is apparently case sensitive by default. Should the regular expressions in the Location directive work in this case? Could someone please show me an example of such configuration that should work? In case a regular expression can not be forced to work case insensitively, what part of httpd's source code should I go around modifying?

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• cisco vpn client randomly disconnects with pfSense

  - by Andre

  My network has two gateways, one is a pfSense box that everyone uses. The other one is a TP-Link firewall essentially for tests. Some machines inside my network need to access a VPN through the Cisco VPN client. If one of those machines is using the pfSense box as the gateway, I experience random connection drops on the VPN. If I am using the TP-Link gateway that doesn't happen. I've tried changing the MTU in the pfSense box and that improved things a little bit but didn't really solve the problem. I also followed the guidelines for traffic shaping in pfSense and the connections still drop quite often. Ideas?

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• SSH and Latent Connections (e.g., satellite connections)

  - by user71494

  Most of the week I live in the city where I have a typical broadband connection, but most weekends I'm out of town and only have access to a satellite connection. Trying to work over SSH on a satellite connection, while possible, is hardly desirable due to the high latency ( 1 second). My question is this: Is there any software that will do something like buffering keystrokes on my local machine before they're sent over SSH to help make the lag on individual keystrokes a little bit more transparent? Essentially I'm looking for something that would reduce the effects of the high latency for everything except for commands (e.g., opening files, changing to a new directory, etc.). I've already discovered that vim can open remote files locally and rewrite them remotely, but, while this is a huge help, it is not quite what I'm looking for since it only works when editing files, and requires opening a connection every time a read/write occurs. (For anyone who may not know how to do this and is curious, just use this command: 'vim scp://host/file/path/here)

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• Cloning Windows 2003 Server to new hard drive results in failure

  - by Level1Coder

  Scenario: Old hdd is a Seagate 320gb SATA drive New hdd is a WD 320gb SATA drive Created an exact clone and replaced old hdd with new hdd. Boot up with new hdd, it gets into Windows 2003 server environment but things look weird. Lots of system event failures in the event viewer log. System is barely unusable, critical services are all down. Boot up with old hdd, everything is fine. QUESTION: Is it possible to do a simple clone of a Windows 2003 server system? All I'm changing is the hard drive, everything else stays the same (old CPU/old mobo/etc..)

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• /srv/mm/Music (etc) Twonky won't scan here for media

  - by Hamid

  Is there something special about /srv/mm/ that Twonky server refuses to scan there? I previously had my system set up with all my Music, Video and Photo folders in /srv/mm shared by Samba, miniDLNA etc, with no problems. I came to install Twonky to replace miniDLNA and after two days of tearing my hair out, changing permissions and owners of the directories I ended up making a new directory at /multimedia and moved my Music, Video and Photo folders in there. Twonky then scanned them all straight away with no problems. I'm running Arch Linux (plugapps specifically) on a NAS. The solution is already implemented (moving the directory) I'm just wondering technically why Twonky might have refused to look for my media in the /srv/mm directories.

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• Windows 8 trackpad edge swipe zones

  - by askvictor

  I'm running Windows 8 on a Lenovo x220 laptop; and have just inadvertently discovered the edge-swipe feature or that brings up the charms or switches between desktop and RT. Only problem is that the landing zones are a little too wide for my liking - I'd like to keep this feature, but to narrow the zone where it can start. I'd rather not disable it completely as per: Modify or disable Windows 8 swipe gestures on touchpad / laptop The Synaptic driver (latest available) doesn't seem to provide for changing this (though it does for other zones). Any ideas?

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• Can I fine-tune my screen brightness? (Ubuntu Studio, Thinkpad T420s)

  - by Dan S

  I am in a similar situation as question Can I fine-tune my screen brightness? . For me, Thinkpad T420s and Ubuntu Studio 11.10. The brightness keys work fine but the increments are too large. I have the /sys/class/backlight/acpi_video0 and I can see the value of actual_brightness changing as I use the brightness keys - it changes between values 0,3,6,9,12,15. None of the listed answers for fine control works here, as follows: As the root user I can echo integers to brightness in the above folder. As an ordinary user I cannot. I do not have /usr/sbin/gnome-power-backlight-helper (because I'm using xfce perhaps?), and not sure what package it's from or if installing such a package would make sense since it's not what's currently managing the backlight. How can it be done, please?

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• A can ping B, B can ping C but A cant ping C. How do i connect A to C (ethernet)?

  - by user16654

  I have a computer at home with ip 192.168.221.xxx I have another computer at work that I can ping and it has 2 ip addresses: 192.168.1.xxx and 192.168.0.xxx. Those last 2 addresses have the same gateway ie 192.168.1.1 . The computer at work is connected to a hub. That hub also has an embedded device connected to it with address 192.168.0.xxx Now from my home computer I cannot ping this embedded device. How would I connect to it without changing the subnetwork it connects to? I can ping the embedded device from my work computer and I can ping the work computer from my home computer. So I am trying to connect to the embedded device from my home computer through my work computer. Port forwarding? how would I establish that on Ubuntu?

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• How to change my commandline locale after CentOS decided to change it?

  - by Aron Rotteveel

  So apparently, CentOS decided I was Dutch, and thus, should not have a English locale. Apart from the fact that this greatly bothers me, I am having a pretty hard time actually changing it back. There does not seem to be a setlocale function, and system-config-language tells me I am using an English locale, even though my environment says otherwise. Any help would be appreciated. Output from locale: LANG=nl_NL.UTF-8 LC_CTYPE="nl_NL.UTF-8" LC_NUMERIC="nl_NL.UTF-8" LC_TIME="nl_NL.UTF-8" LC_COLLATE="nl_NL.UTF-8" LC_MONETARY="nl_NL.UTF-8" LC_MESSAGES="nl_NL.UTF-8" LC_PAPER="nl_NL.UTF-8" LC_NAME="nl_NL.UTF-8" LC_ADDRESS="nl_NL.UTF-8" LC_TELEPHONE="nl_NL.UTF-8" LC_MEASUREMENT="nl_NL.UTF-8" LC_IDENTIFICATION="nl_NL.UTF-8" LC_ALL= Both my ~/.bashrc as ~/.bash_profile contain no locale settings. Additionally, /etc/bashrc does not contain any locale references either.

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• Is it possible to install a bootable version of Windows 7 onto a flash stick?

  - by sam

  I'm thinking of changing to a new laptop that only comes with a 256gb SSD. It's not tons of room, but not inadequate either. One thing I have on my HD at the moment that takes up a lot of room but is rarely used is a partition with a bootable version of Windows 7 (I'm on a mac). Would it be possible to install a bootable copy of Windows 7 onto a flash drive? I was thinking of using a 64gb Sandisk Cruzer USB 2.0, so that when I need to dip into Windows every now and again I could just plug in the flash drive.

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• Intermittent graphics issue

  - by Rob

  An older (~3 year old) PC I have passed on to my younger brother has a Sony 17" LCD monitor and uses on-board Intel GMA 3100 graphics (supports Aero under Windows 7 and no more is required). Recently he has complained to me twice that after booting up the screen looks all 'fuzzy'. Initially I thought maybe he messed up the ClearType settings by mistake, but resetting that did nothing. The only thing that finally worked was changing the resolution to something else temporarily, then setting it back to the original native (highest supported) resolution. The second time this happened the same 'fix' worked. This is happening only intermittently as of now and is not predictable/reproducible. I suspect either the monitor or on-board graphics is dying. How can I check and confirm which of the two it is (or maybe something else you guys can think of)? If it's the on-board graphics, would I be able to keep using the same motherboard with the addition of a cheap PCI-E graphics card?

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• is it possible in this case to get two IPv6 networks to communicate over the IPv4 Internet?

  - by user239167

  I have a setup of a laptop connected to a cellular IPv4 network (3G usb dongle) and PC connected to another IPv4/IPv6 network. Both have been configured to run as IPv6 routers and each has its IPv6 network. The laptop connects to the Internet via the 3G network with IPv4 address (private one and it is mostly changing) on one interface and has the other interface on AP mode providing its own private IPv6 network (2001:db8:444::/64). The PC connects to the Internet via the organization network with both public IPv4 and IPv6 addresses on one interface and has the other interface on AP mode providing its own private IPv6 network (2001:db8:222::/64). Both running Linux Ubuntu. Is it possible to get the two IPv6 network (2001:db8:222::/64 and 2001:db8:444::/64) to communicate over the IPv4 Internet? Is openvpn of any good in this case to get IPv6 traffic over IPv4-IPv4 tunnel? Thanks for helping in advance

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• Why are PNG-8 files mangled when opened in Photoshop?

  - by Daniel Beardsley

  Why are some 32 bit PNGs opened in Photoshop with Indexed Colors and no transparency? For instance, I grabbed a png icon file of the Stack Overflow logo at: http://blog.stackoverflow.com/wp-content/uploads/icon-so.png When opening it in Photoshop CS3, it apparently treats it as indexed color and gets rid of the alpha channel. The image on the right is a screen grab of the icon. Changing the Image mode in Photoshop to RGB doesn't change the image at all. I've tried this with a few other PNGs and it seems hit or miss. When viewed in other programs, it displays fine. left:png opened in Photoshop, right:screen grab of png from browser What gives?, does Photoshop not interpret the PNG file format correctly?

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• Can't downgrade or update jailbroken iPhone

  - by showline2

  I can't update or downgrade my iPhone 3GS, Firmware 4.3.5 tethered with redsn0w. Whenever I try to update it, I get a "device isn't eligible" error. I researched on how to do that, like changing host files, but none of them worked for me. I use OS X Snow Leopard. ## # Host Database # # localhost is used to configure the loopback interface # when the system is booting. Do not change this entry. ## 127.0.0.1 localhost 255.255.255.255 broadcasthost ::1 localhost fe80::1%lo0 localhost 74.208.10.249 gs.apple.com This is my host file – not sure if it's the orginal one or not.

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• Powershell Set-Acl fails

  - by Ulrich

  While working on a little backup script I try to change the ACL of a file using Set-Acl in Powershell 1 on Vista and always get the following error message: Set-Acl : The security identifier is not allowed to be the owner of this object. This error persists even if I go a minimal script: $acl = Get-Acl $sourcepath$file $acl |format-list Set-Acl -path $sourcepath$file -AclObject $acl Does anyone know the reason for this error? Obviously I'm not changing the ownership of the file... BTW: What I ultimately want to achieve is to reduce all access rights to ReadAndExecute. Is there maybe an easier way of doing this in Powershell? Thanks for your help! Ulrich

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• I set a frequency too high for my monitor. How can I get it back to normal?

  - by ChristianM

  I have a Geforce 8500GT on my PC, and I made the stupid mistake of setting it to a higher frequency than my monitor can manage. It boots up and it shows me this… and that's all. I can't do anything. The thing is that I think this video board is a little broken anyway, because when it boots up i can't see anything until Windows starts loading. But it worked fine after, no problems. I'm on my on-board video board now, and I don't know how to set the frequency back, because when I boot up with the on-board one, it says something like "changing freq" and it goes ok. How can I get the frequency back for the 8500Gt?

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• Pages partially load on rapid refresh

  - by user101570

  I recently set up a VPS slice with 256MB to run a LAMP stack (Ubuntu 11.04, Apache2, Mysql, PHP5). So far I'm only running a simple Wordpress site on an IP-based virtual host I set up. The performance is excellent, but I've noticed that if I send multiple HTTP requests from the same IP in a short time period, only partial pages are rendered. Then if I wait a bit and refresh the page, the entire page loads again. I noticed this behaviour when accessing the site from two browsers from my office desktop, but it also presents itself if I quickly navigate the site from a single browser (any browser). I'm guessing this is an Apache phenomenon, as the pages are rendered correctly except under the conditions above, but perhaps I'm wrong here. Could it be my hosting company with some kind of DOS protection in place? As a relative Linux/server noob, I'd really appreciate any insight into what settings in Apache could explain this behaviour, and how I might go about changing it.

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• automatically change the gnome-terminal "title" for the window

  - by tom

  Hi. Trying to change the title of a current gnome-terminal (similar to the "set title" that you can do manually") The system is running Fedora 9. The HowTo Xterm-Title discusses how to set the prompt, for an xterm. Tried to implement the escape sequences with no luck. (might be something weird..) Tried to use the gconftool to dump/change/load the changed conf attributes, and again, no luck. Also, set the PROMPT_COMMAND just in case the prompt command was somehow changing the title back (which is highly doubtful) Searching the 'net indicates that a few people have tried to solve this with no luck... I'd also like to figure out how to create a new gnome-terminal with a unique specified title... once this is solved, i'l gladly create a quick writeup/post onn how to accomplish this for others... thanks

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• Selection Issues with a PDF from a Word document

  - by syrion

  I have a long Word document that has a running footer. When I try to copy and paste across pages in the PDF generated from this document, the behavior of this footer is unpredictable--sometimes it is unselected, sometimes it is selected, sometimes the footer on the next page is selected. I would prefer to make this portion of the document unselectable, so that it still shows up but doesn't interfere with copying and pasting. Does anyone have an idea of how to do this? No, changing it to an image isn't possible, because it includes a page number.

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