Does anyone know why this i and what I can do about it? Appeared right after installing the livna nvidia driver rpm [dave@localhost ~]$ glxgears Xlib: extension "GLX" missing on display ":0.0". glxgears: Error: couldn't get an RGB, Double-buffered visual. Dave -- I found one day in school a boy of medium size ill-treating a smaller boy. I expostulated, but he replied: 'The bigs hit me, so I hit the babies; that's fair.' In these words he epitomized the history of the human race. -Bertrand Russell in Education and the Social Order