I am just glad that I managed to get one of the old refurbs.
I had the same problem, but it seems to be only on certain amps, and pioneer blamed sky and sky blamed pioneer, and at that time I had enough, told them to get me an old box or im leaving sky as it was annoying.
Was thinking of moving to virgin again, but as soon as I spoke to sales, and they never called me back after 4 calls by me asking them to do so as needed to speak to my girlfriend first, I remember why I left them.
If I was not a big HD movie fan, I would have got rid of the lot and went with freesat, and I would not have to deal with any of those jokers.