Well this is a definite fix for PP problems with AMD cards.
Install older drivers! AMD messed up the drivers along the way (I am sure of it since there are no problems with Nvidia and Intel cards! - tested it personally).
Tested with my Radeon 7950.
Screenshot 1920x1080, 4xAA with PP and below the driver version:
Install older drivers! AMD messed up the drivers along the way (I am sure of it since there are no problems with Nvidia and Intel cards! - tested it personally).
Tested with my Radeon 7950.
Screenshot 1920x1080, 4xAA with PP and below the driver version: