Thanks. I brought it up with my boss, mentioned what you said, he doesn't think that's what it is though. Who am I to question him who has so much more experience than myself? (20 years experience) If you say that could be the problem, I of course believe you. I certainly wouldn't press it on him though, it would make me look cocky. I thought about an audio de-embedder, but I'm kinda curious to see how he himself figures it out. After all, this is something that should just work as it has for so many years. We need to use another audio output of the sources we're using in the theater though because of an audio EDID thing. All sources are feeding all tv's, but (we ran into this recently) newer tvs are doing away with accepting various audio formats....they just want stereo. A tv we hung recently couldn't use the digital signal it was being fed so we had to get converters to make it work.