Okay, I only had a quick test at work, but everything looked right. What's special is that I was using Ubuntu Linux.

The all-important information was found [link|http://kapsi.fi/~mcfrisk/linux_gprs.html|here], without which I wouldn't have figured it out. Although a postscript is needed to say that wvdial requires a Username and Password field, even if the GPRS connection never asks you for one (the phone's SIM sorts out that sort of thing).

I'll have another go tonight at home, where I temporarily have no other internet connection. :-)

Wade.