Originally Posted by celegorm
start with all drivers. if you just updated one or more, roll them back first to the ones you were using before.
if that doesnt' work, try reseating RAm and all of your cards (video, sound, etc)
if drivers and reseating doesn't fix it, start trading out any hardware you can. I would start with RAM, then video card.
exactly what i would have said,
-Desktop- Dual Monitor, Q8200 2.34Ghz, 8GB, 1TB, XFX 6850, 7 Ultimate
-ASUS UL50- SU7300, 4GB, 500GB, G210M, 7 Home Premium 64, XP Pro
-HP NC6400- Core Duo 1.86Ghz, 2.5GB, 64GB SSD, x1300, XP Pro