Style Issues with JQM 1.3.1

Style Issues with JQM 1.3.1

Styles are not working with JQM 1.3.1. 
      -- Input Fields are displayed as labels
      -- Modal windows are not populated as expected

<link rel="stylesheet" href="http://code.jquery.com/mobile/1.3.1/jquery.mobile-1.3.1.min.css" /> <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script> <script src="http://code.jquery.com/mobile/1.3.1/jquery.mobile-1.3.1.min.js"></script>

However these issue are not there with JQM 1.0.1 & 1.2.1
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.0.1/jquery.mobile-1.0.1.min.css" /> <script src="http://code.jquery.com/jquery-1.6.4.min.js"></script> <script src="http://code.jquery.com/mobile/1.0.1/jquery.mobile-1.0.1.min.js"></script>

<link rel="stylesheet" href="http://code.jquery.com/mobile/1.2.1/jquery.mobile-1.2.1.min.css" /> <script src="http://code.jquery.com/jquery-1.8.3.min.js"></script> <script src="http://code.jquery.com/mobile/1.2.1/jquery.mobile-1.2.1.min.js"></script>

Any help can be appreciated.