For some reason the following conditional is not working when I choose IE8 in the Internet Explorer document node and/or user agent. This worked before. I am using Internet Explore 11 on Windows 8.1.
<!--[if lt IE 9]>
<p class="alert alert-info chromeframe">You are using an <strong>outdated</strong> browser. Please <a href="http://browsehappy.com/">upgrade your browser</a> or <a href="http://www.google.com/chromeframe/?redirect=true">activate Google Chrome Frame</a> to improve your experience.</p>
<![endif]-->
This bug should be fixed in the latest Windows Update. Let me know if you see issues after installing the update.
The bug is on connect and you can track it there but it hasn't been update :(.