I think I bumped into this problem after the latest xserver update. Previously my MS Intellimouse Optical worked perfectly: all its buttons, including the thumb buttons (for back and forward), and the wheel worked perfectly in Mozilla.
After the upgrade, wheel and thumb buttons stopped working, and I got the wheel working by commenting out following lines in xorg.conf, thus resorting to their new default values: # Option "Buttons" "7" # Option "ZAxisMapping" "6 7" Can you please give instructions for getting also the thumb buttons to work again? I don't understand how that ZAxisMapping thing is supposed to work with my mouse. Thanks, -- --PJ