On some message boards when this happens you can simply hit the back button and the text is still there in the body of the message field and all you need do is input your name and re submit.  Can you not do that with this board format?

I hate it when I start to type also and then the text disappears after all the images have downloaded.  But that is not as bad as typing a whole post up and then submitting it and finding it didn’t go through.