hi all! my son has a problem with the central locking on his P reg 106. When operating the remote key the central locking activates then immediately shuts??? after about five or six attempts the locks open exept for the drivers door, this cannot be opened at all, not even with the spare key??? ive managed to remove the door panel from the drivers door but cant seem to find out why the blinking thing wont open, the door wont even open from the inside??? is it stuck or what??? anyone got an idea?