ListSearchExtender only shows last letter (...h) in IE9 but works fine in FireFox12

I created a VisualBasic ASP.NET WebSite that uses the AJAX ListSearchExtender, and when I use IE9 to display it the ListSearchExtender only shows the last letter of the PromptText and search string that I type in. If I use FireFox12 to display the page it works perfectly.

I then downloaded the source code associated with this video: http://www.asp.net/web-forms/videos/ajax-control-toolkit/how-do-i-use-the-aspnet-ajax-listsearch-extender and when I ran it using IE9 the same problem occurred, and again it worked fine in FF12.

Specifically I am using IE version 9.0.8112.16421, Update Versions: 9.0.6 (KB2675157)

Is there a workaround I can put into my project so it will work in IE9?
Is there a patch that is needed to IE9?