I have an issue where I am unable to complete the vBulletin 4.1 install.
I have checked that the username and password, host and port are all correct in config.php and confirmed it. I am also able to log in via phpMyAdmin with those credentials. The actual username and db name renamed here for security purposes as normal.
EDIT: I have also checked the database user through the web panel, it has all rights to the DB (Select, Insert, Update, Delete, Create, Drop, Index, Alter) and the allowable hosts is %.dreamhost.com as normal.