Tried to update driver

Hi all. I tried to update the driver for my vid card (ATi X800XT). I downloaded the Catalyst uninstaller program from ATi ran it. It asked me to restart after the uninstall was complete. I did, and now my comp gets frozen in a restart loop and tells me that Fastrack BIOS not installed or something. If I hit F8 and select my HDD as the primary boot device, XP boots, but if i restart it does it all over again. I installed the new drivers, but it still does it.
System specs:
Asus K8V SE Deluxe
AMD 3700+
1 gig RAM
WD Raptor HDD

 

UPDATE: DOnt ask me how, but somehow my drive priorities got switched in my BIOS settings when I uninstalled the driver. I went in and switched my HDDs around and it works again