After updating to 12.04, I had to re-install wizardpen-driver ( https://help.ubuntu.com/community/TabletSetupWizardpen ) to use my Trust tablet.
But now when I change the Coordinate Transformation Matrix to anything else but the identity matrix, moving the pen moves the cursor normally, but when I click (or press with the pen) the cursor jumps to the edge of the screen, seemingly depending on how I edit the matrix. I know the tablet isn't broken since this behavior doesn't occur if I leave the matrix as an identity matrix, and the tablet works perfectly on Windows.
