If the user selects a mouse that has a wheel (such as Intellimouse or
Logitech Mouseman+/Firstmouse+) the line:
ZAxisMapping 4 5 (for 3.3.x)
Option "ZAxisMapping" "4 5"
should be added to the pointer section so that the wheel will work
Fixed in CVS, thanks.
*** Bug 10035 has been marked as a duplicate of this bug. ***