OpenGL Problems

I run a AMD k6-2 500mhz, 128MB RAM and a Riva Nvidia TNT2 M64 with Windows 98 SE, the problem is I can’t get OpenGL to run on any of my games, I’ve tried the Detonator Drivers from Nvidia and the Glsetup drivers with OpenGL drivers but nothing seems to work, can someone plz help me. Thanx Brett