Firmware up to date on yamaha? First thing to do. I plugged a cxa5100 in yesterday and could not image from bluray to projector. Firmware update solved it immediately.
Also, is that an active hdmi cable to display? Have you tried a passive cable?
Also, firmware on TV. If all else fails, wait for Brent to chime in and follow his advice without thinking twice. :)
"When I eat, it is the food that is scared." - Ron Swanson