An engineer called today and tested the tv, telephone and internet signal strength of my Virgin Cable installation. He went into the cable box in the street and put us onto a different output level. Fingers crossed all is OK now.
Ironically on the same day Virgin delivered a leaflet via our Post Man. This offered a package with a free mobile phone, which only new customers can have. It does however say that for a one off payment of £49 any subscriber can have an HD Box for no extra subscription. I think it is a cheek to charge for BBC HDTV, so I will wait until HDTV is free.