Your best bet is to leave all AA options disabled through CCC. Use the AA settings available in each game. Same goes for Anisotropic Filtering. You may want to play different games at different settings so that will allow you to. It can't hurt to try the new drivers. 9.6 are newer than 9.3.
Unfortunately, on my 4870x2 I have to use 9.4 because 9.5 and 9.6 both cause problems when i exit a game. My CCC settings get reset for some reason. With 9.4 that does not happen though. Good luck!