Buttons not displaying in latest stable version of jquery UI

Buttons not displaying in latest stable version of jquery UI

Hello,

New user and first time poster.  I am missing my close window X in a dialog box, my incrementing buttons on a spinner, and the calender arrows in datepicker.  I can still hover over the area where they should be and they respond and lighten in color, but the actual icon is not present.

Here is some simple code.  Please note that i have tried changing the .css file to the others included in the .zip file.

<!DOCTYPE html>
<html>
<head>
    <title>jQuery UI Datepicker</title>
    <meta charset="utf-8" />
    <link rel="stylesheet" href="css/jquery-ui.css" />
</head>
<body>

    <input id="date" value="0" />
    <script src="js/jquery.js"></script>
    <script src="js/jquery-ui.js"></script>
    <script>
        $(function () {

            $("#date").datepicker();
        });
    </script>
</body>
</html>

Please advise.  Is the "stable" version not stable?  I am using firefox as my browser.

Thanks