When entering information for MySQL database and I click Install Now, I receive the following error:

Database connection information Unable to connect to MySQL server. mysqlnd cannot connect to MySQL 4.1+ using the old insecure authentication. Please use an administration tool to reset your password with the command SET PASSWORD = PASSWORD('your_existing_password'). This will store a new, and more secure, hash value in mysql.user. If this user is used in other scripts executed by PHP 5.2 or earlier you might need to remove the old-passwords flag from your my.cnf file

I have no idea how to fix this. Any help would be appreciated.