so, apparently some time yesterday, all the lights that were on for a choir rehearsal in our auditorium inexplicably went out. No sounds, no funny operation, it all just turned off. The board was still on(there was nobody in the booth at the time) and after taking a look, the dimmers were on and fine and everything was connected properly. The dimmers simply aren't getting a signal. Has anybody had this problem? Any ideas on what to check/try? This one's got me stumped. Any thoughts are greatly appreciated. Thanks.