kontakt til msql samt oprette en database

Når jeg skriver sådan:

<?php
$link = mysql_connect('localhost', 'root', 'mysql_password');
if (!$link) {
  die('Could not connect: ' . mysql_error());
}

if (mysql_create_db('my_db')) {
  echo "Database created successfully\n";
} else {
  echo 'Error creating database: ' . mysql_error() . "\n";
}
?>

Kommer denne fejl:
Warning: mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client in c:\apache\apache\htdocs\admin\finish.php on line 8
Could not connect: Client does not support authentication protocol requested by server; consider upgrading MySQL client.

Jeg mener at Apache køre korrekt idet jeg kan afvikle sider med php.
Jeg mener at Msql køre korrekt.