Is anyone else having HDMI handshake issues with an Xbox 360 being run through a AVR? Three components into my AVR, then 1 HDMI out to TV. The cable box and BluRay work great, but the xbox will not work without doing a 20 series of unplugging, plugging and input switches on the tv. I can cycle through the other two components without a hitch, but the xbox is a problem. I know it has something to do with the TV, as I've been running this setup for 8 months on my panny S1 and a week on the returned samsuck. Here is the really odd part, if I connect the xbox hdmi straight to the TV, all is well, but I dont get 5.1 sound via optical out on the tv. For now I've just moved the Xbox to the panny for the kids, but this crap is getting irritating. Thanks in advance for any help or ideas.