no big deal, heres how to fix it.
change to run level 3, log on as root, edit /etc/X11/xorg.conf. Now scroll down to "input device" and edit it so it looks like this.
Code:
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/mouse"
Option "Buttons" "5"
Option "ZAxisMapping" "4 5"
Option "CorePointer"
EndSection
go back to runlevel 4, and wala!
if you still have problems change the proto from auto to "IMPS/2"