Simple question

I have been told that in order for the OpenGL driver to work properly on my Voodoo Banshee, I have to uninstall the old drivers. How do I delete just the old OpenGL drivers and leave the rest?

The normal way in Windows is
pick a VGA driver as the current driver
remove the old driver software
change driver
with some interrupts for restarts. I do not know about old Voodoo cards since they was different.