I purchased a new TX-NR818 over the weekend and short story, it works great, firmware all squared away, Audyssy MultiEQ calibration completed for now (when I get around to a 5.1 instead of the current 3.1, I'll do this again.) Movies sound spectacular, regained voices thanks to a center channel, and I now "FEEL" thumps from T-Rex or a helicopter rotor and of course, explosions, all while keeping the overall volume to normal listening So far, the only thing that confuses me is the OSD Setup will not display; as it stands, "HDMI Main" cable goes from the NR818, into the very first (top) HDMI /ARC port on my Panasonic 55" Viera. In order to view the Setup OSD, I have to change Input on the Panasonic Viera to the 2nd port, BD-DVD port, and then I proceed to go through the setup. I thought the setup should show up on the primary HDMI/ARC port and not have to change anything on the Panasonic Viera. Is there some configuration on the NR818 that I'm missing here? It's a small thing I guess but I need to understand what's going on and if this is normal or not. I printed out their manual and while some things were specified, there didn't seem to really be anything specific in terms of what to hook up; it simply states to connect HDMI-Main from the NR818 to the TV's HDMI port. Thanks in advance with any answers and things to try.