I currently have my mac mini running mavericks hooked up to my TV via HDMI. I've had no issues with it in the past, but just yesterday I noticed that my audio wouldn't work though my system (I have a pioneer receiver). I can play audio though my speakers on the mini, but they will not work though the system. I played my xbox which is plugged though the system and it seems to be playing audio perfectly. I checked all the audio settings and can't seem to come up with a solution. Anyone think they have an idea of what it could be?