forgetting to add subject
 

I have started posts where it has taken some time to get it all typed out, only to forget to put something in the "Subject" window. After clicking on OK a window pops up that says "You must add a Subject" and there is a "go back" button. The problem is that when I "go back" the post has gone away and I have to start over. Is there another way to get back to my post without losing what I had already typed?

Thanks
Tom