I believe this question is unanswered as of now so I appologize if I've overlooked it.

I have been having trouble some external devices with windows recently and I'm trying my darnedest to get to the bottom of it.

At first, my Zero Tension USB mouse would stop working...as in the laser in the bottom of it would be on and would register movement, but the mouse on the screen wouldn't budge even an inch. At first this would happen randomly and then it would correct itself. As time went on, it became more and more frequent. At some point, the computer would make the "doo doo" sound of plugging or unplugging a USB device when the mouse stopped/started working. I dealt with it for a while and usually if I rebooted my machine, the mouse would work again for a day or two. As more time has gone on, the computer fully does not recognize the mouse AT ALL...I have another mouse that I use with the computer that works just fine and cannot seem to figure out why my Zero Tension mouse has failed.

I tried plugging the Zero Tension mouse into my Mac and low and behold, it works without hesitation and never stops on me...

Needless to say, I am stumped about this.

I figured because I had another mouse I could deal with the loss of my fancy one for now...until my speakers stopped being recognized.

I have a set of Logitec speakers that I have plugged into my sound card. Again, every now and again the audio devices would cease to be recognized by my computer, but a reboot would fix the problem. Now my speakers do not work at all with my computer and I feel like it's time to ask for help.

My computer seems to be having a neural shutdown...where I can plug in devices and the computer doesn't seem to notice anything wrong, but none of the devices work. I hope this doesn't get any worse! Please help!

Also, on a potentially (un)related note, when I start up my machine I get the message "This application has failed to start because Msvcp71.dll was not found. Re-installing the application may fix this problem." in reference to qbupdate.exe

I don't know if that DLL being messed up has anything to do with my mouse or speakers, but I figure it might...anyway, thanks in advance for an answer and let me know if I need to clarify anything.

Let me sum up:

1. Zero Tension Mouse gradually stopped working
2. Logitec Speakers gradually stopped working
3. MSVCR71.dll seems to be messed up

I don't know if any of those are related but any help would be much appreciated