Another quick job done whilst I was in the loft was to reconnect the layout to the computer. Because everything has moved around the computer is not next to the layout anymore. This meant that a my standard USB cable wasn’t going to be long enough and I had to buy a 5m cable. I bought this very reasonably from Babz Media on eBay (£1.54 including postage).
To keep everything neat and tidy I just routed the USB cable up and over the roof trusses down to the Mac on the other side of the loft.