I've got a Sony HCD FX80 sound system connected to output of TV via optical. I can't get my new NSZ-GS7 to control volume or power the unit off or on. I configured the HCD-FX80 as the AVR device. I've place the IR blaster directly in front of it, and ensured it is fully plugged in. Won't do volume either with or without the function light selected. HELP! BTW - I'm upgrading from a Logitech Revue, and absolutely love the ability for the Sony to play video from my NAS, and not skip a beat on HD from YouTube. Amazing! I suspect the broader standards support plus the faster processor make all the difference.