Hopkinton - I was messing around with an amplitude envelope, ultimately deleted the envelope, and now the Pro Channel for that track seems unresponsive. All of the Pro channel elements I'm using, compressor, etc., have their power buttons illuminated but by all indications, no signal is flowing through the Pro Channel for that track. All the EQ, compression, etc. I had set up is now inaudible. When I power up/down the individual Pro Channel modules I don't hear any changes. I have Breverb in the same track's effects bin and that seems to be working. Any idea what's happening? It's probably a me thing. Thanks!