wildfire

The standart win2k drivers works fine with my savage4(although I can only choose 60hz refresh rate, which is odd) but both direct3d and opengl doesn't work. Halflife gives the error: This opengl mode is not supported by your video card. I assume that i haven't got the right opengl drivers installed, can anybody please tell me where I can find opengl/direct3d drivers for my card ??? Thanks