Does anyone know if an upgrade from MySQL 4.0.21 to 4.1.7 should have any complications? As far as RT goes, of course. :) Yes, I am RTFM-ing. (http://dev.mysql.com/doc/mysql/en/Upgrading-from-4.0.html) I just thought that I'd double check with people more experienced than myself. Thanks in advance, Jaime