I have a new HR34, which replaced an old HR21. Up until the old one died, I was able to select 480p, 720p, 1080i and 1080p as resolutions. My TV is capable of producing 1080p (it's a 4 year old Mits DLP). After replacement, I can no longer select 1080p with the HR34. Instead, I get a message that my TV is not capable of resolving a DirecTV 1080p signal. I never got this message on my HR21. I also have a 1080p Sony in another room, hooked up to an HR24. That receiver allows me to check all four resolutions, just like the HR 21 did. Of course, it doesn't matter what is playing at the time--the boxes can still be checked. With a CSR on the phone, I have dutifully plugged in and out HDMI cables, etc. No change. Any ideas what is behind this? I could have sworn the installer of the HR34 checked all the right boxes, but I cannot remember for sure.