Just set everything up after practice last night, and my Midiverb's borking up. It either has the red overload light on all the time, allows me to change patch but doesn't actually change the sound, as on bypass mode. Or it has NO signal (so it says) and therefore doesn't change the sound at all. This is baffling as my sound goes through the midiverb BEFORE it gets to my amp, so it's not as if the midiverb's dead.

Has this happened to anyone else? Or if not, any ideas on how to get it back working??