Awesome Radeon x1650 errors. help please?

[RequiemXRT]

My computer, which is more than qualified to handle pirates, always crashes after roughly 30 seconds, locking my computer up to the point of hard restart. However, my laptop, which is a piece dell d600, runs it fine. When restarted, windows always cites "Driver error." I've tried the new ATI drivers (which suck), Omega drivers (which did nothing). Is there any fix for ATI AGP cards that anyone's found that work?

Thanks!

Desktop:
AMD 64 4000+ (single core)
ATI Radeon x1650 Pro AGP
4 gig Ram
Windows XP Sp2