Is OpenGL required ?

[B0rsuk]

Arrrgh, I can't get Mesa to work. How did you do it ? The trouble is I can't find any sensible documentation, not to mention an example.
It would appear that I already had several 'mesa' packages installed, but I can't figure out how to use it instead of nv or nvidia. You know, the Driver "nv" section in xorg.conf . What do I put into xorg.conf (if anything ?)
In any case, glxgears doesn't run because;
Code:

---

b0rsuk@dziupla:~$ glxgears

Xlib:  extension "GLX" missing on display ":0.0".

Error: couldn't get an RGB, Double-buffered visual

---

I use (K)Ubuntu 6.06. I can't find anything except several dozen "ATI drivers suck and how to get rid of mesa" type of threads. Please help, I finally found a way to pay for Dominions3, and it would utterly suck to fail so close to my goal.