Scrolly wheel no workie

I upgraded my hoary hedgehog install on my dev system to breezy badger and my scroll wheel no longer functions. I think mouse config is somewhere in the X stuffs, but I can't find it. Am I looking in the wrong place, just not recognizing it when I see it?

Muchos Gracias en avance.

Have a look in /etc/X11/xorg.conf.

The "Input Device" section in particular. I believe there is an Option line that should have the "ZAxisMapping" set.

Mine looks like this

Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ImPS/2"
Option "ZAxisMapping" "4 5"
EndSection


Thanks homie. I added the ZAxisMapping option and it worked like a charm.