OpenGL and Nhl 2000

Hi
i had the MDK 2 demo, and they auto installed some OpenGL drivers for me, but after than, NHL 2000 wouldn’t work. It goes up to the part when the game actually loads, and then freezes up.
i have a Nvidia Riva TNT 16MB vid. card, if that helps.
can someone please tell me what to do here! thanks.