I've just been reminded, in an expensive way, that I really must log in to the blog before trying to post. If I'm not logged in when I try to post, I get sent to the log-in page and then the post disappears. There's a recovery button, but I just lost about half an hour's work because the recovery button didn't recover the entire post. And it was an interesting bit, too. It'll just have to wait now. I haven't got time to reconstruct it.