I'm setting up my home theater using a Mac Mini 2.26 along with a Pioneer Elite VSX-23TXH receiver. I bought the Kanex Mini Displayport to HDMI 1020p Video and Digital Audio Adapter. I can connect my Mini directly to my Samsung plasma and everything works fine (although the top of the display where the menu is doesn't show up) but if I run the HDMI cable thru the Pioneer I get nothing which mean I don't get the audio through my surround system. What am I missing?