Thanks for the reply Captain PPRuNe.
Firstly let me make it clear I wasn't criticising or complaining but just wondering whether it was me or not.
Out if interest I have tried it with several different service providers (4) IE 5, Netscape Communicator 4.7 and Netscape 6.
Having said all that at the moment (ie now) it is the fastest it has been for weeks!
I can only echo others comments though that your time, effort and money is appreciated.