Stefan,

Just to be sure, I pulled the latest GIT and rebuilt CinGG to test the ShuttlePro.  Initially I had tested with "root" but now have tested as an ordinary user.  You do not need to have a .shuttlrc file BUT have to make sure the permissions are correct.  Maybe you updated your Operating System and this file no longer exists?

      /dev/input/by-id/usb-Contour_Design_ShuttlePro-event-if00: Permission denied

Per the manual, initially you have to do:

   sudo cp {cindat_path}/doc/99-ShuttlePRO.rules /etc/udev/rules.d/

I did not reboot though, but cheated and just changed where the symbolic link pointed (in my case ../event18) to read mode and the ShuttlePro worked just fine.  Then I rebooted, to make sure.