After install, thanks to ALTER TABLE bb_posts statement in sql/mysql.400.sql, Table bb_posts has had field poster_ip int(11) converted to name poster_ipd varchar(15). But all I can find in the rest of the source refers to field poster_ip, no reference to poster_ipd. Post queries therefore fail with unrecognized field name. This change was checked in SVN rev. 2172 on 23 September 2008. I would class this as a serious error!