Strange Problem: No Video

I was able to watch some recorded programming this morning, but now there is no video. I get audio and I can see the guide, list and other screen furniture, but otherwise the screen is blank.

So that's for recorded programs, on live programs I don't even get audio, but it's a pretty rainy day today so I suppose that could be related.

Just to be specific, the recorded programs were recorded days ago.

EDIT: Reset fixed it. From browsing around here I understand this kind of thing is pretty common, I miss my Directivo (although I switched because of hangs, but that was after years of good service, not 2 weeks).