X11: Have wheel on mouse must use in XFree86 4.x
(last edit: 2001-06-06)
                   
Introduction
You have a mouse wheel and you would like it to work, wouldn't you? Well I have a Logitech
Cordless Mouse and I got it to work under XFree86 4.0.3_3. 

The weird thing is that when I specify the 'ps/2' as protocol the mouse wheel doesn't 
work, when I specify the 'auto' protocol it does work. Strange.....

XF86Config
Quit X if your running it, edit the '/etc/X11/XF86Config' file on your command line as 
root. Add the following lines to the 'Section "InputDevice"' (ofcourse the one of your 
mouse and not the one of youre keyboard):

        Option      "ZAxisMapping" "4 5"
        Option      "Buttons" "6"

Save, quit and start X. Now your mouse wheel should work. If it doesn't: make sure you 
have specified the 'auto' protocol (see introduction).