Thanks guys
I think I'll try your approach Jason.
If I can avoid "installing" any potentially malicious software on the machine it's got to be good. This is the only website that I've ever come across that requires this sort of approach.
Fortunately, I have very few problems with spam these days. In the old days, on dial-up, it was a menace but the ISP on broadband seems to have things under control.
Thanks again for the advice.
Regards
Wannabe