Well, I just tried it on yours and mine and the same thing happens in both. (see pic) A few notes to help debug: 1) After I get the dialog that says "no subject or body...", none of the other buttons (Save Draft, Spell Check) work, only Send. 2) If I'm in text mode and I switch to HTML mode, all works fine.

[edit]FYI: It does this in the Nessa template set too.[/edit]

My guess is the JS check looks for a value in the hidden compose_body field and something in the HTML editor is not updating that field properly.

I guess us beta testers didn't do a good job testing :)

~Charlie

p.s. I went through the template that Adrian posted by hand and found no missing or extra table tags. HomeSite was reporting extra table closing tags also but it must be all the template tags throwing it off.