Hey has anyone had any trouble with there control knob? My V1's volume goes up an down on its own,Ka dont work all the time an it locks up. If i touch the knob the voulme works sometimes an the Ka band works. It has to be powered off to reset. It acts to me like its in program mode or something. Just asking if anyone has had anything like that happen. An I know its not working cause i checked it out with my RX65. Its not working.