Try applying the patch at http://sourceforge.net/tracker/?func=detail&aid=2829716&group_id=163434&atid=827735 to the source code. (It adds a workaround for this annoying bug in ubuntu's GTK+ and Synaptics device drivers). Hope this helps.
Denis ** Bug watch added: SourceForge.net Tracker #2829716 http://sourceforge.net/support/tracker.php?aid=2829716 -- Xournal does not work well with touchpads https://bugs.launchpad.net/bugs/348706 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs