I've got a 722 (not 722K) hooked up in my living room, and for a while now, instead of going into standby, as my 211 does, it turns off. The message that shows when I turn on the TV even says something like "Your receiver is off", instead of "Your receiver is on standby", or whatever it is supposed to say. I checked the Inactivity Standby option in the menu, and it's set to go to standby after 4 hours, so everything looks good there.
The receiver is hooked up to a Vizio 47" LCD TV in the living room (through HDMI) and a Symphonic TV/DVD combo unit in the office (through coax). Before that, the office TV was a 15" Samsung LCD (still through coax), and it did the same thing with that TV.
How do I get it to go into standby instead of turning off? Tonight I had a DVR timer set through remote access, and the receiver never turned on to DVR the show. I have done a reset at one point in the last few months (like January or February), as it locked up. But since then, apart from the standby thing, it's working fine.