Wolfenstein Error: "ChoosePixelFormat() failed: Cannot find a suitable pixel format"

When loading Return To Castle Wolfenstein, this error message appears “ChoosePixelFormat() failed: Cannot find a suitable pixel format.” I click the OK button and this error message appears “Glide->OpenGL Wrapper: Cannot create OpenGL window!” I’m running a P3 800 with 256MB RAM, Win98 Second Edition, and a GeForce 256.

The Glide message is probably because OpenGL could not start. Do other OpenGL programs works?

Yeah, Quake 3, American McGee’s Alice, hell, even the RTCW multiplayer test works fine.