well i found this website it shows how to fix it but i didn't have the file they were talking about. this is the page
7 Button Mouse
this is the info on it
First step, modify the
mouse section of your /etc/X11/XF86Config
Section "InputDevice"
Identifier "Intelli
Mouse"
Driver "
mouse"
Option "Protocol" "ExplorerPS/2"
Option "Device" "/dev/input/mice"
Option "
Buttons" "7"
Option "ZAxisMapping" "6 7"
EndSection