Interesting... My crashes are random also, checked event viewer and found 3 in the last 12 days.
Happened once during web browsing, once during Metro 2033, and the other I was likely away from PC as I don't remember it happening.
The GPU seems to play games fine aside from some non driver related HK.ship failures on Sleeping dogs, and random crashes on Metro 2033. Had the Witcher 2 crash on loading a saved game a few times also.
But I played Borderlands 2 for hours no issues, ran heaven for an hour no issue etc.
Do you think I should continue my RMA and be bored for 3 weeks, or wait for new drivers?