The images (above) indicate the settings that I used to get Thunderbird working under Vista for my att.net account after the changeover to yahoo. I believe, although my memory leaves me a little short here, that after the wizard is done (and failed), I put in the appropriate addresses (see above) and such and the wizard filled in the rest. Also, note a failed attempt (non-default) in the outgoing server (upper) image.Good luck, and if this needs improvement, please write.
