I just connected my new ATV using a HDMI cable to my five year old Denon AVR-887 and assigned the HDMI port to the VCR1 function. Although I do get audio from the ATV, there is no video. My Mitsubishi HD monitor is connected to the AVR with component cables and seems capable of displaying the input from any other device regardless of the source resolution. I have explored all of the AVR setup options and have not been able to discover any setting that will solve the problem. Any help would be appreciated.