Hii Debbie, thanks for the suggestion, but I must have gone through that procedure dozens of times, I could do it blindfold. And like i said all the cables and equipment has been tested and/or replaced by 4 different engineers on 4 different occasions. Plus I do the "walk through" by phone from TalkTalk, on the numerous occasions I have phoned, plus the engineers doing the same checks when they are here.
RosyB