Did have same problem, same time as greg, hit my internet box, shouted at it, then just gave up on mudcat till it sorted itself out.
I assume it was some sort of internet TV bollocks, [there probably all the same company, and were updating the system or something?]

All seems fine now.

Its pointless me buying a computer, i'm too thick to understand them, it took me ages to figure this internet box out, and there supposed to be easy!