i have an Nvidia card(gforce4), and opengl wont work. When i run call of duty i get “Could not load OpenGL. Make sure you have the latest drivers for your video card from the manufacturer’s website.” i Have all the latest drivers for my card and it still says it 
also in DXDIAG it says “Direct3D functionality not available. You should verify that the driver is a final version from the hardware manufacturer.” none of my 3d games work halo, WC3, C&C Generals, Call of duty. I make games in gamemaker only 2d games like the ones in there work. I mean but i can make 3d like doom just cant use openGL.