Guide/caller id

Caller id stopped showing up on my screen. Also, every time I try to search for a title on the guide grid, as soon as I type in the first letter I get a message saying that listings are currently unavailable. This has been happening for the past few days. Usually I can just fast forward to a day or two in advance to program the show I don't want to miss but, the last day or so has said that there is no data for Monday. I can usually advance up to 3 days or at least find it in title search but...