Ooops. False alarm on my part. Turns out I had a one character typo in my xorg.conf.
There's a completely separate bug about switching away from the X server and back to it again that I'll file, but this now appears to work.
Sorry about that. :-( -- Kevin Brown [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]