Well this is weird. I had tried making a profile earlier where I set the AA mode to multi, and no luck. So I deleted the custom profile and used the default one. This time I made another profile with multi on, and the problem kept happening, so I killed the CCC process and restarted it and bam, it works.
Interestingly, a reboot didn't solve that problem which it should have. I think something is wrong with my CCC.
Hmm, I don't use profiles...so I really don't know what's up with them. If I want to change something I go into the CCC and make the changes in the "3d application settings"
Maybe you should try a clean re-install of your drivers. Uninstalling everything related to ATI CCC before. That's what I do every time I update the drivers.
Anyway, glad you got it working, that thing is very annoying! But it's clearly CCC related and not the game.
Does anyone know why Adaptive MsAA in the CCC gives this?