xmoto error

[edan]

i didnt really know where to post this message so i poted it here

when i start xmoto i get an error that goes like this:

Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
Xlib: extension "GLX" missing on display ":0.0".
fatal exception : SDL_SetVideoMode : Couldn't find matching GLX visual

i use gforce 4 mx 440
my nvidia-settings and nvidia-glx are installed...

(when i type glxgears -printfps i get a error that looks like this:
Xlib: extension "GLX" missing on display ":0.0".
Error: couldn't get an RGB, Double-buffered visual

just thought that could help :) )

thanks for your help