I found the problem, if Bad Query Strings is checked.
wp-admin/load-scripts.php?c=1&load%5B%5D=jquery-core,jquery-migrate,utils,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,jquery-ui-sortable,jquery-ui-draggable,jquery-u&load%5B%5D=i-droppable,wp-ajax-response,jquery-color,wp-lists,postbox,nav-menu&ver=3.6
fails to load which make Appearance -> Menus to malfunction.
the images is just an example. like the Contact Form 7 plugin i will just insert this code [contact-form 1 "Contact form 1"] then in a specific page it will display a contact form. i would like to know how to do that.