Like Nitestick and Surge have said, the video crashing can stop other processes too. I know this has happened to me when my GPU crashes at times. I'll get a bunch of red artifiacts, and a half-second sound loop will start playing. If I wait for much longer before resetting my comp, I'll get a BSOD related to my GPU. I just have to hit my reset button on my computer, and wait for it to boot up again.
Ah now I understand thanks for the information. Your crash sounds somewhat similar to mines ( the sound loop was about half a second but I didnt get red artifacts, rather my screen froze ), except I didn't get a BSOD and actually made it back to desktop. Are our cards just getting too hot? ( you even have the new G92 ), you think any permanent damage is being done? Also how far can you get on the ATI Scan for artifact test until you get errors?
Does artifacts necessarily mean physical damage done to the card or is it just the cards inability to work that fast due to conditions at hand?
The reason I may think its the former is because when my ATI 256mb x800 xl started getting purple equally spaced squares when playing counter strike source, people on the forums were saying my x800 was probably starting to die.