Read this:
http://robouk.mchost.com/tuts/tutorial.php...utorial=server1
Browse to the setup area dealing with mysql tells you how to set a password for \"root\" the default user for mysql, also you can simply \"find and delete\" my.ini on your system and then re-run mysqladmin if your user newer 3.51+ versions of mysql it should prompt u for a username and password... Then in phpmyadmin go into the mysql databse find the users table and delete all entries \"ACCEPT\" for the user/password you currently want to use so is only one valid user/pass in the database.