This is the same problem I reported a page or two back, and a couple of other people have also seen. Just to provide a little more information, when this happens I have no video signal out. The power light blinks when I hit the remote or the front panel buttons. A recording that I had going on continued past when this happened, up until I did a RBR. On the one time this happened, a show was deleted from the now showing list between when the video out failed and the reboot. I was able to go back and watch the show that I put on that caused the failure. Mine is an HR20-100, this is an HR21, so it doesnt seem limited to a particular box. Never saw anything like this happen prior to 290.