I'm not using gpm. My XF86Config-4 has this Section "InputDevice" Identifier "Configured Mouse" Driver "mouse" Option "CorePointer" Option "Device" "/dev/psaux" Option "Protocol" "ImPS/2" # Option "Emulate3Buttons" "true" Option "ZAxisMapping" "4 5" EndSection
before I installed it I found a page at http://www.koala.ilog.fr/ describing how to use a wheel mouse with X Bob