Ok, as of about the last 2 or so weeks, my 211K will for no reason just start showing Error 004 ( This channel is temp unavailable, please channel up/down bla bla). First it would happen for 5 minutes or so. Now i have to keep doing check switch's for it to come back and it happens more then once a day. It never happens to SD channels, only HD on 129. The channels most prone to it are TBS, VH1, and Spike( hd Versions of course). The Signals are fine ( between 65-75) so i dont understand why this keeps happening. Its Getting more frequent and making me more frustrated. Any help is greatly appreciated.