I've had a Cleon 8 for a couple of years now, but haven't used it much. Now I find it is acting strangely. When plugged into my 50D, it won't AF, display the Menu, or allow viewing of the images (arrow button). I recently changed the batteries, and it will fire remotely so I am suspecting the receiving / wired unit. The code matches.
Am I alone? Is it kaput? Any suggestions? 

