For some reason the forward and back buttons on my Microsoft Intellimouse don't automatically work with my OpenSuSE 10.2 distro. So all you do to fix this is:
edit /etc/X11/XF86Config
and add a line under this section:
Section "InputDevice"
Driver "mouse"
Identifier "Mouse[1]"
Option "Buttons" "7"
Option "Device" "/dev/input/mice"
Option "Name" "Microsoft IntelliMouse Optical"
Option "Protocol" "explorerps/2"
Option "Vendor" "Sysp"
Option "ZAxisMapping" "4 5"
Option "ButtonMapping" "1 2 3 6 7" #ADD THIS LINE
EndSection
Also, just as a small side note. Be sure to save a backup of XF86Config before making any changes so you don't mess something up and have to reinstall your OS (speaking from personal experience).
And I bid you all - a good day.
