Hi wonder if there is anyone out there that has had a similar problem to me. I've got a Grundig set top box that has been working fine for the past two years. Now all of a sudden I keep getting No signal error messages on screen, but only on certain channels. For example Discovery home and leisure ok but +1 no signal, Channel 4 fine but Channel 5 No signal. If anyone out there can help or give me a clue how to get a new box from Sky then that would be great.