I've been coping with this problem for a couple months now and finally decided to try to fix it and/or get a new graphic card.
Every now and then the screen goes crazy with distorted images and colours and the computer freezes afterwards.
Sometimes when all this starts happening i am able to quickly close the browser and/or game im running and it fixes itself, with a "your video card controller had an error but recovered properly from it" message. But this doesnt work most of the time and the computer freezes anyway.
I'm 90% sure it's a graphic card problem since i can still hear whatever video/song im running in the background after the screen goes black, before it eventualy freezes completely.
I've also noticed this happens more frequently when i'm running a movie+game in different screens. Or when i'm running a heavy graphic game such as Bioshock 2 or even Counter Strike: Source.
With that said, it doesnt happen too often, maybe 1 time/day and sometimes it doesnt even happen at all.
I'd be happy if you guys could help me identify the problem or tell me if i should buy a new graphic card.
This are my specs (built my computer myself 5 or 6 years ago):
Intel® Core i7 CPU
NVIDIA GeForce GTX 285
Let me know if you need more info.
Thanks in advance and sorry for my english,