11-06-2012, 03:56 AM
Is it an actual Steam game, or did you add it as a Non-Steam Game? If the latter, there's every chance that it just won't work, and I can't suggest much.
If it's the actual Steam game, I've had that a couple of times with various games. Usually once I restart the PC/Steam it works. If that doesn't do it I'd recommend checking out this thread, the third post might hold the solution. You might also want to update your graphics card drivers (Steam can do this for AMD, Steam -> Update AMD Video Drivers, not sure about other brands though).
If it's the actual Steam game, I've had that a couple of times with various games. Usually once I restart the PC/Steam it works. If that doesn't do it I'd recommend checking out this thread, the third post might hold the solution. You might also want to update your graphics card drivers (Steam can do this for AMD, Steam -> Update AMD Video Drivers, not sure about other brands though).