Extra Lines using SyntaxHighlighter for Chrome Only?

Extra lines are being inserted when I am using Chrome to look at a draft blog post (on blogger) that uses syntax highlighter e.g.

But on IE it looks fine:

Any ideas what I am doing wrong here?

edit:

The config/setup for SyntaxHighlighter I am using is below:

<!-- Syntax Highlighter Additions START -->
<link href='http://alexgorbatchev.com/pub/sh/current/styles/shCore.css' rel='stylesheet' type='text/css'/>
<link href='http://alexgorbatchev.com/pub/sh/current/styles/shThemeDefault.css' rel='stylesheet' type='text/css'/>
<script src='http://alexgorbatchev.com/pub/sh/current/scripts/shCore.js' type='text/javascript'/>
<script src='http://alexgorbatchev.com/pub/sh/current/scripts/shBrushcsharp.js' type='text/javascript'/>
<script src='http://alexgorbatchev.com/pub/sh/current/scripts/shBrushCss.js' type='text/javascript'/>
<script src='http://alexgorbatchev.com/pub/sh/current/scripts/shBrushJava.js' type='text/javascript'/>
<script src='http://alexgorbatchev.com/pub/sh/current/scripts/shBrushJScript.js' type='text/javascript'/>
<script src='http://alexgorbatchev.com/pub/sh/current/scripts/shBrushXml.js' type='text/javascript'/>

<script language='javascript' type='text/javascript'>
SyntaxHighlighter.config.bloggerMode = true;
SyntaxHighlighter.all();
</script>
<!-- Syntax Highlighter Additions END -->

edit:

And the HTML generated is:

<pre class="brush: csharp;">using System;
<br />using System.Text;
<br />using System.Collections.Generic;
<br />using System.Linq;
<br />using Microsoft.VisualStudio.TestTools.UnitTesting;
<br />using AccountTypeFollowUp;
<br />
<br />namespace PluginsUnitTests
<br />{
&