Spoke too soon.

Lost video when switching channels twice last night. No other receivers in the house have the problem. There's no error message, just randomly when changing channels, the screen goes to a "gray" screen.
At that point no other channels will come in, menu and search screens work fine. Only way to clear it up is to restart.

I've moved the receiver to other places in the house, same issue. It is the only h23-600 in the house, the rest are 11 series, and an hr23 series.
Not sure if it's a bad receiver, but I don't recall having the problem before I started applying the CE updates. I guess my next move is to re apply the "national" release and see if it continues to happen.
Thanks for listening,
L.G.M.