Toledo 11,digital 17, won't lock in on my 622 even though the signal strength is 95 minimum. This channel has been fine until this weekend. Tried tuning it in Friday and got a message box saying to "wait until locked", but it never did. I then erased it from the channel list and tried reloading manually. It shows a strong signal on the bar graph,95 to 100, but never locks in? I am picking the channel up fine on the TV,s digital tuner, but not on the 622.