Got the full game but I do not have this problem. I have another problem that is graphics related - the mouse jerks across the screen and the cut scenes are also very jerky. A friend of mine has a supercharged PC and his does the same. I am wondering if there is a bug in the graphics on the game. When the game starts it analyses your system and sets the menus to your desktop resolution 1024 X 768 in my case. Try setting your desktop to different resolutions to try to solve the problem.