I've heard of similar problems before, but that was down to faulty graphics card drivers. Try updating your graphics card drivers.
Also for that matter see if there are any upgrades for your BIOS try and download them from the BIOS manufacturers' website.
quote:
Originally posted by YA_MUM
XP pro (i dont have the 64 bit edition, is it worth it?)
I'd say yeah, XP 64bit does totally utilise the power of 64bit calculations. Personally I'd wait until the next version of Windows with its 64bit version, its only going to be around 1-2 years.