The issue I had was jQuery was not loading because our site is running on "https" and jQuery was trying to load with "http". So just had to remove the "http:" in "core_htmlhead.php" (edit this file under the "admin" folder as well as the "core" folder) so it looks like this...
<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jqueryui/1.8.0/jquery-ui.min.js"></script>