I installed Windows 7 just fine. The video card on that computer is old, a Radeon 8500. No drivers exist for Vista or Windows 7. Windows 7 used the default VGA drivers. I purchased a new video card, a GeForce 6600, which has Windows 7 driver support. I installed the new video card. The bios screen comes up and post, then it goes to the "starting windows screen", then the computer reboots back to the bios screen.
Any ideas what may be wrong?