Hi, regarding my previous E-mail I suppose that it might be an indexes problem in the table structure. I have defined both columns "auth_user" and "id" as primary keys because I want to associate up to 4 AVPs to an "auth_user" with different "id"s. But when I insert a second (different) "id" to the same "auth-user" into the table I get a mysql-error #1062 - Duplicate entry for key 1. Therefore I will now clarify the right way of defining primary keys :-) . regards Franz