A few nights ago I had installed a different video driver to try and get my nvidia 7600 GT to run GTA IV. The drivers didn't work properly, so I uninstalled them, and unintentionally all my nvidia motherboard drivers. So I set about formatting instead of replacing the drivers as for some reason my base usage was up about 50mb without reason. So I formatted and reinstalled new windows xp pro sp3. Have done this a million times, when I installed a message showed something like "your drives have changed since the last reboot this is typical of a boot sector virus" so I did research and found a few forums stating to reflash my motherboard. Reflashed my asus m2n4-sli motherboard, reinstalled windows, and didn't get that message about changing drives. This is what is a terrible mystery. I bought a new hdd and tried to install windows again, when I get to the first install screen, everything works perfect, I can install win xp in about 5 mins blazing fast, after the first reboot though, the mouse doesnt work and everything is slow. I've tried reinstalling about 5 times, and the same result every time. Any light to shed on the situation? Appreciate anyones info supremely.