I am not sure if GLQuake runs on the Virge, since it was made for Voodoo.
If you try a GL-version of Quake, make sure that you get Blitzquake, not GLQuake.
Blitzquake is just amazing, has lots of added features and runs faster than GLQuake.
If you have a graphics card supporting it, the GL-version is much faster than the normal Quake-version.
Blitzquake even run reasonably fast on my 040/40 with a Mediator/Voodoo3 combo.
Now with a BPPC it's just a dream, even in high resolutions.