Wondering if anyone else has seen this. I have a TiVo HD with version 9 of the woftware, but I'm pretty sure that this happened on version 8 as well. Every so often, when I change video output format's in Messages & Setup (which I have to do fairly often, due to reasons not related to TiVo...) the TiVo suddenly stops displaying any streams. That means no background menu animation, no live TV, no recorded shows, nothing. Just blackness. The menus and guide data still work fine, but the only way to get it to play video again is to reboot the box. Obviously, it's pretty irritating, anybody else have this issue?