Hello everyone ! Encoded an .mkw file to .mp4 to be with Apple TV 2. Apple TV 2 is connected via HDMI to my Receiver. I have a 5.1 setup and I cannot get the MP4 files to play 5.1! (only 2.0 LEFT and RIGHT Speakers) I am using the Apple 2 Preset. I did not touch the Audio Tab and left it to default. Any suggestions? Thanks!