Jason - Again, many thanks, I will get to the bottom of it.......albeit this might take some time!
1) Standard modem supplied by NTL (pre VM), so I can put a tentative line through that although will check.
2) I've been gonig through a large excercise on AV software and downloaded many trial products and as speed is poor across the board I'll put a line through that
3) I agree with you - doubtful, but possible
4) Line interference......back on to VM !!
Thanks again, I appreciate your v/busy.