Help, Opengl Vendor String is NULL

I have this problem when i install Heavy Metal fakk2. The message appear when i start to play game. The Massage is "Glimp_Init() - OpenGL Vendor String is Null." What should I do. Please Help.....

Strange, I would try to reinstall the latest drivers for the video card.

I have the same thing happend. Installed and updated new drivers and get the same error message. "Glimp_init() OpenGl vender string is null" Running a win2k OS for the game Medal of Honor Breakthrough. Strange thing is that Medal of Honor Allied Assault runs perfectly.