I am using a Gigabyte GTX 580 and am having issues with bf3, predominately that I cannot run it in full screen, I have to run a 2560x1440 window. In fullscreen I get crashes quite often, and though windowed has crashed before, it is not very common. I also get the whole screen flashing green sometimes.
Running the latest beta drivers with a well ventilated corsair 600T. Overclocked or stock, just seems to be kinda buggy for me.
I don't use WMP, but Firefox (7.0.1) has no issues at all.