My picture keeps breaking up and I loose sound. This only happens on one of the inputs. I have tried swapping the cables on the back of the sky box and all this does is transfers the problems to the other input. I can't figure out why this only happens on one of the cables from the dish. It does take a different route from the second ( I had standard sky first and which went through my loft. When sky fitted Sky+ they refused to route the cable through the loft and routed it around the house). The cable I'm having the problem with is the one that routes through my loft. Could it be the connection on the dish? or the route my cable takes?. I'd appreciate some help please. Thanks Ash. PS. Just fitted 160GB HDD and it's really easy and works great. Make sure you purchase the correct tools from maplin before you start.