Been having problems with my Sky Digital for a couple of months now and it's been getting worse. 90% of the time I get the 'No satellite signal being received' screen. It doesn't cure it by disconnecting the power etc and I've tried turning the LNB power off and on in the installer setup menu, as suggested on the Sky website. Every now and again, it will just start working again. When it does, the picture is fine but usually I can only pick up certain channels. I borrowed a mate's old digibox and exactly the same happens, so doesn't look like it's the box. So I'm now thinking it's either the cabling or LNB? All the cabling looks fine, so rather than the cost/hassle of calling Sky out, I'm tempted to buy a new LNB from simplydigital. How easy is it to change the LNB and does this sound like it could be the cause? Cheers, Steve.