I’m investigating an issue with this WP install not sending the registration emails for new users. It’s not an issue I encountered with the other sites since this is the only blog that permits open registration. I toyed with setting up an SMTP server on the local box, but it may be something as simple as turning on a function in the php.ini. I’m still doing the research based on the WP forums. Expect to see multiple reboots during the day, which means the occasional site outage.