I am pretty sure glquake used a weird system of drivers called mini-gl that were either provided by ID or graphics card makers. They only supported an extremely

I am pretty sure glquake used a weird system of drivers called mini-gl that were either provided by ID or graphics card makers. They only supported an extremely limited subset of opengl. See: http://en.wikipedia.org/wiki/MiniGL http://en.wikipedia.org/wiki/MiniGL