what video card are you using? nvidia or ati?
go to that your video card website and go to download section, and select your graphic card model and download the latest driver.
if that doesn't fix.. go to microsfot and download the latest directX.
you should be able to enable through DirectX diagnotic toll by going to the "display" tab.
if everything fail, most likely your video card does not have enough memory (probably not a good video card, then you shouldn't try to play modern game or high performance game).
anyway here direct link for u