I've had this problem. You may notice that I have a tendency to write little novels - lengthy posts. Sometimes I think Agora "times out", and the post appears lost. So, when I think of it, I do an edit/copy before I hit post message, just in case. If not, with the new agora, I can hit the back button a few times and get back to what I posted, copy it, then create a new message with the pasted content, and it will post.

Just some hopefully helpful input from that long-winded guy.

SGE