Hi Andy,
You can change the box over yourself....when you do...phone sky and get them to pair the card to the box..they will ask for a job number but just tell them you are a private customer...they will ask you for your name and address then ask for card number.....then version number of box and serial number( press services button...then 4 and 5).
Your box has a faulty power supply and depending on model,i.e.drx 100 or 200, you can get a replacement from satcure, or if you are any good with a soldering iron, buy an upgrade kit for the psu..that should repair the box...hope this helps
Dan
January 2007