The three primary buttons work. Does anyone know the incantation required to get the scroll to work?
The first thing to try is running 'mouseconfig' from a root terminal and seeing if they have a listing for your trackball (or a similar one) there.
Phase 2 usually it involves having the correct Protocol set in /etc/X11/XF86Config as well as the following line:
Option "ZAxisMapping" "4 5"
I don't know about the trackball, but all the scroll mice I've tested work with:
Option "Protocol" "IMPS/2"
So you might want to try that.
