[Margaret]

I do have Norton AV
Funny thing, I rang Virgin today because when we had a new Pace box put in about 3 months ago the engineer said we needed a new cable to the house as what we had was the weakest they did so I was arranging a date.
As a special offer he has upped my connection from 2meg to 4meg for £1 less than I am paying now and it didn't go off tonight.
Yesterday (Sunday) it went off at 6 30pm so I don't think that was a surge in use. I will wait to see if it happens again