So I just got one of the new 15 in macbook pros yesterday and I've fully integrated it into my home theater system. I've got a mini display to hdmi adapter making my hdtv a second monitor, and I've got the line out audio running into my audio receiver. The odd issue is that when I have the line out audio and the mini display adapter plugged in at the same time, I pick up what sounds like a eastern-european/middle-eastern radio station over the sound system. However, if I unplug the audio cable the radio does not play over the mac's internal speakers and when I unplug the mini display to hdmi adapter the sounds also disappear and all I hear over the sound system is my mac's audio. Does anybody have any idea whats going on?