It doesnt normally happen in css, but it has happened, happens everytime i play hl2, and sometimes when im just on aim..
The screen goes black, then big artifacting blocks come up, then i get a blinking cursor in the left corner
I've tried a couple different drivers..maybe im missing something
There really seems to be some instability there. Make sure to give your memory enough voltage or even test the Ram if you can. The only time I have had issues like that is when the card was OC'd to high, card too hot, or memory starting to go bad. For some reason CSS doesnt seem to stress components too much on newer systems so that is hard to guage. Also, with the drivers make sure to uninstall them and completely delete them by using DriverCleaner. If you also know how to, remember to delete the drivers from the registry. Good Luck....