   Strange windows problem usb/mouse, serial mouse not working kinda
  Hi, after having some weird networking problems, I've added a new harddrive to my computer(in bios hd0) and install windows on it and boot off that drive.Leaving my serial ata drive alone still with its original contents.The problem is that the mouse isn't working. The usb mouse (a beefy 6 button or so type) worked at first, but after a while it stopped working and doesn't light up anymore. So I plugged in another usb mouse(2 button) which lights up but doesn't move the cursor or get detected by windows.I then plugged in a serial mouse which lights up and works sometimes, but stops responding 65% of the time.Also usb drives don't get recognized, they light up though.So I reinstalled the windows again, on that hd, but the same problem occurs as described above, except this time I don't have use of the mouse during installation unlike before.I then boot off the original serial ata harddrive, which all the mice start working fine.Then I go back to my troublesom windows install hd0, which the problems still persist.Its an nvidia motherboard or something like that and I installed its drivers to get the network card and sound card working, and possibly should of fixed the usb devices but doesn't do anything.I don't know why computers seem to flip out whenever I try to 'fix' them with unexplainable quirks and problems, but does anyone have any clues on what could be going on here?Thanks!   
  Could be you have a bad USB bus.  Let the machine cool off, say about three hours, or turn if off, leave it off for a bit and then hit the motherboard with a lot of canned air.  Will cool things off fast.  Then turn it back on and try again.  If everything works for a while and then flakes out again then you have a fault in your USB bus.  theTroll   