I’ve created a site account with a MySQL database (with the use of ISPconfig). The database name is: web15_db1 and the database user is: web15_u1. (I also enabled the "remote" option, and did set a password.) When I access the server with "phpMyAdmin" I do see the database and user name, so this is all working fine. Anyway.. Today I tried installing "phpBB2 Plus" (it's a forum), but for some reason it did not accept the user/database name! The error I was getting is Client does not support authentication protocol requested by server; consider upgrading MySQL client (I'm 100% sure the username and passwor that I used was correct) The strange thing was that when I deleted and recreated the same user and same database again within "phpMyAdmin", I was still getting the same error! I've now setup the forum with the root MySQL user and password :/ Anyone here who might know what could be wrong? Does MySQL not exept users or databases with a "_"?? MySQL version is MySQL 4.1.11-Debian_4sarge5 PS.. I will try to recreate the error on a new test site later today.