So frickin annoying... I've been using a particular pedal board setup for awhile now without any problems -> I've got a powered board with a Boss LS-2 - Loop 1 just has an Ibanez PD-7 and the other has an SB-7 and a Blowtorch (with a separate 18V power supply). I recently added a BBE Opto-Stomp before the LS-2 and yesterday was my first time using it. So I plugged everything in (all the pedals were already connected just as they always were, with the exception of the Opto-Stomp which was new) .. suddenly I am getting NO signal out of the LS-2 at all. I checked my 2 main patch cables (in from my bass and out to my amp) and they were both fine, and I disconnected all of my pedals from the LS-2 so it was just in and then out, and nothing. The pedal lights up fine, switches correctly when I press the pedal, but just puts out no sound. I'm going to do a little more testing, but I just don't know what would have happened to it. It was working just fine a few days ago and nothing significant has happened to it. Could it be a power supply issue? The board has a 500mA supply so I guess I could swap that out with my Power-All and see if it fixes the issue... but dang. Any thoughts?