Database Problems & Upgrade
I've been having a lot of trouble with the MySQL database this past week, in an attempt to fix this, I just updated the database to a newer release. Any changes to the forum database in the last 3 minutes have been reverted as a result of the upgrade.
Hopefully this will fix the database errors that were popping up.
I'm also hoping this will address some of the general slow-down that's been affecting the site (and the forums in particular) over the past couple of weeks.