http://wordpress.org/extend/plugins/easing-slider/ When this plugin is installed and activated the page Form is embedded on will refresh when the user clicks “Submit” instead of the form submission occurring via AJAX as it should which means the submission is never sent for moderation. A possible cause is that, by default, it loads an older version of jQuery …
http://wordpress.org/extend/plugins/nmedia-user-file-uploader/ This plugin hides the form submission button. NOTE: This FAQ was written based on Nmedia Users File Uploader Plugin 2.1 / Pro 7.3