This is now the second time I've seen this happen. When going into 'My Shows', there is a long pause with a green circle, at least a minute in length. Apparently the thing times out and then draws a blank My Shows list with only Netflix, Amazon, and PyTivo listed.
Switching the UI to SD and then back to HD clears the problem and the list populates correctly.
Anyone else experiencing this and/or know the cause? It's a minor problem that's easily cured but still an annoyance.