I've often had problems with remote response time, menu speed and other generally odd performance issues with my HR's, but I noticed my downstairs one was often worse than the upstairs one. This morning I was having a lot of trouble getting it to respond to the remote although it'd respond alright to the front panel buttons, but realllly slowly. After poking it a bit I noticed our wireless keyboard/mouse, which uses IR to communicate with the base unit. Hmmm. I moved the keyboard into another room and closed the door. Remote on the HR works better. Brought the keyboard back, problem came back. I tried out everything else we've got in the room that uses IR (dvd player, roku box, tower fan, etc) and everything seemed fairly happy with the wireless keyboard. But not the HR20-100. While its unlikely that others (or anyone!) would have the same wireless keyboard, it seems that at least my model of the HR series is very sensitive to other (and persistent) IR sources while other consumer electronics that I have are not. So if you have some remote with a stuck button, or some other IR source close to your HR and you're having problems, try shielding the IR port with some foil or making a 5 sided 'fort' over it and sticking your remote up into the open 6th side to see if that improves things. Its not like this makes the 5-6 second response times go to 1 second, but it eliminated some instances where the HR didnt see a remote button push at all, ignored the remote for a period of time, or demonstrated other odd/unusual performance issues.