This recently started after updating a game I had previously played and never encountered an issue. Entering the game in full screen mode renders the upper left corner of the screen and shoots the remaining lower half and right half past the edge of the monitor. I initially thought this was a game setting issue, but realized it was more than that after loading another game(also no previous problem, and no updates.) to encounter the same issue here.
I have an ATI 7950 with up to date drivers. Both the games and desktop resolutions are set to 1920 x 1080.
press alt and enter and then alt and enter again when in the game if that occurs.