Sign in problem with IE

I have a signin process identical to the one in the book in an
application. However, the sign in process fails for IE 8. The signin
works fine in every other browser. Could someone help with this issue?

My code is like the one of the _stylesheets.html.erb of the book:

<!--[if lt IE 9]>
<script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></

<![endif]-->
<%= stylesheet_link_tag 'blueprint/screen', :media => 'screen' %>
<%= stylesheet_link_tag 'blueprint/print', :media => 'print' %>

I also noticed that the class="round" in not working for IE

Thanks.

What’s the specific problem you are having with IE8?

Posting some relevant code and error messages may help with troubleshooting.