i been having the same problem since i upgraded.I tried using different settings in CC but no luck. So i decided to try diff set of drivers and finally found the most stable set of drivers which were 10.5a. After installing them i have had no crash so far and all seems stable i did lose a few fps here and there but nothing to worry bout as i can still get steady 60fps.
For the people who are having BSOD problems make sure that you remove any form of OC and try again. hope this helps
I even tried at stock clocks and was having the same issue. No BSOD but screen lock-up. I haven't tried any older drivers. Will wait for the next release; taking a break from BC2 for now.