Hi Richard!
First off, I hope you don't mind that I moved the post here.
The feature does work, but some email servers don't allow mail that's generated by the board to get through to users, and that's how the response notifications are sent. I'd have to check to be certain, but I think you're the only member that's currently registered using prodigy.net, so I don't have any other reference as to whether Prodigy is one of those email servers except that I recall you didn't receive your password when you registered.
MB may have more to add, but you might want to consider checking with Prodigy about the problem.
