To explain what halo described, with the post thing, it was a side effect of the move to this server. You don't know the hell crankeye went through to get the database onto here ;_;
Cloud master's server refused to give a complete and un-corrupted copy of the forum database, so he had to do it in multiple chunks if I'm not mistaken. Eek.
Also for the record, some of the tables in the database get broken sometimes (just on their own), but SMF being the cool thing that it is, it automatically fixes itself. So it might have been that =o