Success!! Many thanks for all the helpful comments.
I finally got it receiving pop3 mail last night although it will not send (not too bothered about that).
I was using my full email address as the username ( which I have to do on my other pop3 accounts). Apparently it just requires the bit before the@. Doh !
As usual with me, it's either finger trouble or not reading the instructions.
It seems to have sparked an interesting range of opinions though
!!!
Regards
Jon