I've abandoned HSVPN2 and I won't go back there. I'd love to find a solution on my own PC, but I'm reasonably savvy on the basics and am pretty sure I don't have viruses/spyware or other obvious problems, I don't use extraneous tool bars, and I find exactly the same difficulties whichever of my various machines I use. I do have a working solution, but it's not cheap.

FWIW I think BTL is sinister, as I know they've spent a fortune on software to block VoIP, at the same time that their own service is suffering badly from lack of proper investment. The British High Commissioner of a few years ago had some choice words to say about them and their British chairman!