A Christmas Miracle
Well, thank God for that. I screwed up my PC last night and had to do a system recovery. When I restarted the computer my BT Voyager 100 ADSL modem wouldn't respond. I downloaded the drivers from the BT website, but when I tried to install them I kept getting an error message.
After trying again and again for about 8 hours I was about to give up when, lo and behold, it suddenly worked. I'm not sure what happened so if I seem to vanish from the face of the Earth for the next few days you can assume that it broke again. In the meantime I'm not touching anything I don't understand.