Live Writer said it had published, but I have no idea where the post went. So I tried again - several times - and no such luck. Nothing. So I posted to another blog - Packer Stuff, Anyone? - and that worked fine. Except for some of the formatting, which I had to go back and fix, but at least it published.
I'm wondering, do LiveJournal and Live Writer no longer play nice together? Or is it just a temporary glitch?
ETA: Found it! - Jan. 2nd, 2007 at 4:10 PM
Yep, that makes perfect sense...