Interesting, the card could just be going bad. Unless the problem is strictly happening in XP.
Try turning down hardware acceleration to off and see if that changes matters.
Does it lockup in games? I know that card wont handle much but you could try some older D3D or OGL games.
Do a search for the old Monster Truck Madness demo. Or Motocross Madness 1 demo from MS.
Click on start, then run, then type in dxdiag... in the video card section theres 2D/D3D tests that you can run.
Also, check your power supply unit out if its old.
Check into those things, swap out some parts one by one if possible.
Feel free to ask me questions by PM or reply directly to me in the forum with your results if you wish (so I get an email notification), I'm a decent troubleshooter.
As far as video bios, I'd probably forget it if I were you.. unless that link CoolS gave you has something.
Check your bios options on your motherboard and see what things are set at also.
Good luck!
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