If IE comments showing up in IE9

This is what is happening when you visit my site in IE9 -

This is the code that is causing this:

<!--[if lt IE 9]>
<script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<link rel="stylesheet" href="stylesheets/ie.css" media="screen" />
<![endif]-->
<!--[if !IE]-->
<link rel="stylesheet" href="stylesheets/sizeable.css" media="screen" />
<!--[endif]-->

<!--[if !IE]-->
<link rel="stylesheet" href="stylesheets/sizeable.css" media="screen" />
<!--[endif]-->

Thoughts?

EDIT: fixed according to the commenters, thanks. See also the other answers.

Corrected code (second part):

<!--[if !IE]> -->
<link rel="stylesheet" href="stylesheets/sizeable.css" media="screen" />
<!-- <![endif]-->

<!--[if !IE]> -->
<link rel="stylesheet" href="stylesheets/sizeable.css" media="screen" />
<!-- <![endif]-->