Is Windows Xp compatable with Open GL

All my games that use opengl worked fine before installed Xp. Now all the games I play like tribes… Lag really bad an our all distorted… Is it because of opengl? Does it need to be updated? What should I do?

I would like to know the same question. On the quake 3 Team Arena when I try to install openGL it says that to install openGL you must have windows 95-98. So is there a download for a newer openGL that will work with XP. By the way I have a (NVIDIA RIVA TNT2 Model 64/Model 64 pro.)
Can some one let is know some thing. Thanks.

Windows XP does support OpenGL. Whether the drivers for a specific card support OpenGL on XP is a different questions. As for NVIDIA based cards, they should work in OpenGL with Windows XP, using the latest reference drivers.

are nvidea the only ones to address this so far?..kyro 2 isnt working [herc prophet 4500]