Having had a whinge about BT, I should at least acknowledge when it works. The new hub arrived, it looks a lot nicer than the old one, it was easy to set up (in that there was very little to do) but most importantly it works. The BT Vision box needed a little coaxing, but powering everything up in the order suggested did the trick. Also it’s worth giving the hub a few hours to settle on a speed. Initially I was still only getting around 1Mb/s and - having ignored the advice about waiting before running any tests - had surrendered to the thought of needing to check all the wiring; a few hours later it had settled at just under 12Mb/s. The literature says to wait ten days for a more accurate reading, but for once I am optimistic. Assuming the hardware problem has been sorted, I now need to wonder on the user problem; somehow this month the house has averaged in excess of 1GB/day usage, and I’m beginning to think it may be less a daughter/YouTube problem and more a parent/iPlayer problem. Yes, alright, it’s my fault.