This is happening for me as well in Ubuntu 12.04.1 LTS with a Bamboo CTH-670. I also reported the bug directly at the Linux-Wacom project's bug tracker:
http://sourceforge.net/tracker/?func=detail&aid=3577383&group_id=69596&atid=525124 ** Bug watch added: SourceForge.net Tracker #3577383 http://sourceforge.net/support/tracker.php?aid=3577383 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/234466 Title: [hardy] Pen crazy in tablet PC To manage notifications about this bug go to: https://bugs.launchpad.net/linuxwacom/+bug/234466/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs