Setting up Forward / Back Buttons on Logitech MX518

Note: This guide was based on Ubuntu 5.04.

Step 1: X Server Settings
Edit the /etc/X11/xorg.conf file and look for the “InputDevice” section, make sure it looks like this:

Section “InputDevice”
Identifier “Configured Mouse”
Driver “mouse”
Option “CorePointer”
Option “Device” “/dev/input/mice”
Option “Protocol” “ExplorerPS/2″
Option “Buttons” “7″
Option “ZAxisMapping” “4 5″
EndSection

Make sure that the ‘Buttons’ is ‘7′, ‘Protocol’ is ‘ExplorerPS/2′, and ‘ZAxisMapping’ is ‘4 5′.

Step 2: Install imwheel
Type:

sudo apt-get install imwheel

Reboot, and it should work!