Mausrad Problem Upgrade Ubuntu Hardy Mouse Wheel no working Hardy

Problem: No working wheelmouse after upgrade (5-Button-Intellinet-Explorer)

Solution: /etc/X11/xorg.conf

Section "InputDevice"
# generated from default
Identifier     "Mouse0"
Driver         "mouse"
Option         "Protocol" "auto"
Option         "Device" "/dev/psaux"
Option         "Emulate3Buttons" "yes"
Option         "ZAxisMapping" "4 5"
Option     "Buttons"  "5"
EndSection