> Check this entry in /etc/X11/xorg.conf ---> Load "glx" > > It must be activated. Yes, it's activated but it's not enough. This is the "Section" (I never changed it): Section "Module" # Load "bitmap" Load "dbe" # Load "ddc" ## Load "dri" Load "extmod" Load "freetype" Load "glx" # Load "int10" # Load "record" Load "type1" #Load "vbe" Load "synaptics" EndSection Thanks, Giulio