Authentication with old...

Hi..

I encounter this error when connecting to the database;

ERROR:Authentication with old password no longer supported, use 4.1 style passwords.

Web Site Address:   http://www.caddeworld.net

What is the solution?Waiting foryour help

           MySqlConnection conn;
            string myConnectionString;

            myConnectionString = "server=caddeworld.net;uid=******;" + "pwd=******;database=******;";

            try
            {
                conn = new MySqlConnection(myConnectionString);
                conn.Open();
            }
            catch (MySqlException ex)
            {
                Response.Write(ex.Message);
            }

I connect the form of..