me falla el fetch array al cambiar servidor

[rsoler]

fetch array me falla al cambiar de servidor cual puede ser el problema

<?php
error_reporting(E_ALL);
//befor it works perfectly with this parameters
//define('DB_HOST', 'imysql03'); // database host
//define('DB_USER', 'i4571449'); // username
//define('DB_PASS', 'ydehortyfsn7f2ms'); // password
//define('DB_NAME', 'i4571449'); // database name
//define('ADMIN_LOGIN', 'admin'); // administrator's login
define('DBMS', 'Mysql'); // database system
define('DB_HOST', 'localhost'); // database host
define('DB_USER', 'coopelr_i4571449'); // username
define('DB_PASS', 'ydehortyfsn7f2ms'); // password
define('DB_NAME', 'coopelr_i4571449'); // database name
define('ADMIN_LOGIN', 'admin'); // administrator's login
$link = mysql_connect(DB_HOST,DB_USER,DB_PASS);
mysql_select_db(DB_NAME, $link);
$sql = "SELECT cedula,nombre FROM Choferes ORDER BY Cedula ASC";

// fails now execute SQL query and get result
$sql_result = mysql_query($sql,$link)
or die("La consulta no se pudo ejecutar.");