From the late 9000 series Radeons onwards through the X series and HD cards - there are CTD problems on the campaign map. The button fix usually solves this problem. If the button fix is not working, then I would advise that you check that it is correctly installed. Ensure that the two files go in the correct directory, overwriting the originals. If this still doesn't work then I am out of ideas as it looks like you've tried everything else.