Apparently the reason for the intermittent errors that people have been getting on this blog is that Pair doesn't like mySQL as a backend for MT blogs. Pair support suggests using sqlite instead, a database so fast and simple it is impossible for humans to use. MT support -- who really aren't much use -- suggest exporting all the entries from one database and then reimporting them to a new installation. But that does nothing to transfer the templates, settings, plugins, and everything, in fact, that is not the plain text. There is a script that is supposed to work this magic, but it doesn't. The author clearly knows what he is doing but I have a hard time understanding him for reasons which may be clearer if you follow the link. So, unless anyone out there knows better, we're stuck with intermittent database errors. Don't all comment at once.