You can edit the file 'montezuma/includes/menus.php', and change line 127 from
HTML Code:
$output = preg_replace('/ title="(.+)"/', '', $output);
HTML Code:
// $output = preg_replace('/ title="(.+)"/', '', $output);
or download the attached file (which has the fix applied) and using FTP, replace the existing 'menus.php' file in the 'includes' sub-folder in the theme