Wampserver lille probem

Warning: mysql_connect() [function.mysql-connect]: Access denied for user 'SYSTEM'@'localhost' (using password: NO) in C:\wamp\www\ban-system\checkban.php on line 3

Access denied for user 'SYSTEM'@'localhost' (using password: NO

<?

if(!$id) {

session_start() or die("<br>Fejl<br>");

}  

$host = "localhost";

  @$connection = mysql_connect("localhost","root","");

if (!$connection) {

$mysql_error = mysql_error();

srand((double)microtime()*1000000);

$number = rand(1,200);

print mysql_error();

exit;

}

  mysql_select_db("root", $connection);

  echo"$connetion";

?>