I just recently built a new pc. After using it for abit one day, World of warcraft did this to me..
http://img95.imageshack.us/img95/4375/wtf8wf.jpg
After messing with some settings, i got it back to normal, but had to get rid of some glowing effects on the video settings.
Also after a while, whilst playing Oblivion i noticed it was also doing the same thing, but not as extreme.
My system specs are as follows :
(CPU2) AMD Athlon™ 64 X2 Dual Core Processor 4400+ @ 2210MHz (http://www.abit.com.tw/ AN8 Series(NF-CK804) mainboard) (RAM) 1.5GB, 1.03GB free (HDDs) 233GB, 199GB free
(VGA1) NVIDIA GeForce 7800 GTX (256MB), 1600x1200x32, 60Hz (OS) Microsoft Windows XP Professional (SP2), 29m 43s uptime, 17h 1m 38s uptime record
Thats a fatal1ty motherboard. Ive tried a couple of different drivers including the ones with my card, i have tried the latest nvidias also.
Anyone got any ideas?