My HR23-700 is connected via HDMI to a 1080P capable flatscreen. Recently the new HD menu software has been pushed to the box. On Monday night I noticed when playing the season finale of Sons of Anarachy that the TV said 480p as the resolution when playing. I went into system settings and checked that native mode was set. Then I went to the HD menu item and noticed that 480p was the only resolution checked. I put a check next to all the other resolutions, restarted the playback, and was back to 1080i. On Tuesday night, when I got home and turned on the TV, the same thing happened. The DVR was not powered off between uses and is always on and connected to a UPS. I hope this is not a nightly event.