Any chance, since I am getting the same message, but actually am getting a message prior to this one. When I code require_once 'Mail.php'; I get an error message saying that a stream couldn't be created (something like that). I know for a fact that Mail.php cannot be found on my computer at all.
I need to know how to (I think) to install the Mail part of PEAR. I believe that's the problem, that pear install Mail has not been done, but the more I read, the more I'm confused as to how to do this one part of PEAR. Help would be greatly appreciated.