Ok that's the sort of thing Ayuthia wants to investigate. You could supply and little more information about your setup. For example are you using one of the .fdi's posted on this thread. Which one? Which patch did you apply to linuxwacom 0.8.3? And attach the relevant portions of Xorg.0.log, /var/log/messages, etc. That way he can see if he needs to make changes to the code.