is it dead?

i have a gigabyte ga-7vaxp that i used in my main computer for a few years and it worked great, but i upgraded and i put it my closet, but i pulled it out recently to build my mom a faster computer, but now when i install XP and install the chip set driver when i reboot and get the login the screen it looks fine, but as soon as i login the screen go's all funky, i was thinking bad video card, so i got out an old pci video card, but i get the same thing with it, so is the board dead or could it be something else?

try updating bios if there is one (not that it has anything to do with your video)..

and what chipset drivers are you using ?? via version ??

also have you tried to boot into windows in safe mode ??