Hi, I have some serious problems with a Showtec 4 channel DMX T-bar. Some of the channels goes to full on as soon as I power up the unit, even when my lighting desk is off. Does anyone know how I can reset the unit or tell me how I can access the dimmer menu? It seems like the same unit is made by Botex (T-4) and Lite-Puter. Botex had a users guide for download, but the 3 pages didn't help me very much.