Hi, I own the jm4 since 2010, and have a problem that I can not record anymore. The recording session does not start even I press on the Recording footswitch (I can hear the click!) This problem starts earlier this year were I could record with the 2nd or 3rd press on the switch, but today the footswich is not activating. I do not feel that there is a mechanical problem. Is there anybody with an idea? In additional, the volume is also sometimes increasing without any action while playing ? - Any idea? Thanks!