Ok, on my computer, my games dont work, got no idea why. When I open them up, it freezes for 2 seconds, then I'm back on my desktop, with the game minimized. I click on the game in the bar in the bottom (or whatever its called) and then does the same thing. Ar first I thought it was my directx, but I updated it and still nothing.
I'm using Radeon 00/X550 Series (0x5b60) Approx total memory is 128mb I just tested, and CS works, but not my other game like COD2 and BF2142 dont
If it runs and freezes and then closes again to your desktop, I think it's cuz you don't meet the game's requirements :S I'm not sure, but games do that when I don't have the requirements, maybe you should call support.