I had some contact direct from Virgin via email which was a welcome surprise. In fact I got signed up to the 'Virgin Media Digital Home Support' where they shadow your pc and actually fix stuff there and then. So now after two attempts they have fixed the problem both times but alas as soon as I go to another WiFi network and then come back to my Virgin Wifi the problem still persists. I simply can not reconnect onto Virgin.
I tried using the 'Home Support' service today and it is 'out of order' until 9am Monday, so no help there!
I am on the ethernet connection right now.
It seems it is a problem with the Virgin Wifi all in one modem and router. Ho hum... still trying to get all this sorted. Weirdly though it all still works perfectly going to and from different WiFi networks with the other identical laptop.