For fixing the error in the UI (at least) could you please post the output of: Code: dpkg -l | grep tactile Search about the tactile in other threads for its status. IIRC, the work has not been completed and it hasn't integrated in the system as the developers would like it, but I don't remember anything about it not working.
dpkg -l | grep tactile
/home/user # dpkg -l | grep tactile rc tactile 2 Tactile feedback for the N900 /home/user #