Sudden Attack Help

So I am having trouble with SA

When I open the game up I can only see the right side of the game itself. So i have half a game on my screen.

The resolution auto adjusted, tried diff res' didnt work.

Anybody know how to fix this?

AMD Radeon HD 7770 Ghz Edition 1Gb

~42' TV

Running on DVI

Win7 64 bit