I get the "At least one identity should be chosen" with the only id that I have. What is wrong?

Question

I just began getting the "At least one identity should be chosen." yesterday when I try to post to a Yahoo message board. Until then I had always been able to post easily. I get the same answer from two different, networked computers at my home.

Jerry

Answer 1

There`s a drop down menu that you have to choose who message goes to. (Recipients)