BINGO!

When my system recovered, Windows XP said it was related to the ATI driver and that a more up to date one was available. But when I go to Sony's web site (I have a Sony VIAO PCG-GRX560) only the standard driver is available. Being a notebook, I'm leary of putting just any 'ol driver on it. The ATI site says "contact your computer's manufacturer".

I'll see what I can dig up. I didn't really trust XP's auto-diagnosis but I guess I was quick to judge!

Thanks