So I just broke down and bought a new Mac Mini and hooked it up via HDMI to my Denon receiver. I went online and found how to set up OSX for surround sound but to my disappointment iTunes didn't put out a 5.1 signal. Is there any way to do this or am I out of luck?? I run all my audio and video through my receiver since my TV came out before HDMI was introduced (but it's still an HDTV...go figure). I'm was hoping to replace the Apple TV I had hooked up but if it's not gonna send out a Dolby 5.1 signal then the TV will stay put.