Twice now, in the last five days, my HR34 has stopped responding to my remote's RF commands while watching a recorded program. Everything worked fine this morning for over an hour, fast forwarding, pausing, then it just stopped responding to any button on the remote. None of the controls on the front of the unit are responsive either. The first time I tried our other two remotes with the same negative results. A RBR is required to restore the function. (At least that button still works!) What's going on here? Is this a problem with the latest update, or an indication of a failing unit?