quake 3 graphics opengl problem

i often have graphics problems with quake 3 arena mods etc where many of the effects are replaced with black and white squares. i have an Nvidia GeForce2 MX and was wondering if these problems were in any way related to OpenGl and how i mite be able to solve them


To be quiet honest, I am not familar with Q3 extensions but if the original game runs fine, I would blame the extensions and nothing else.