jQuery UI show/toggle problem in IE9

jQuery UI show/toggle problem in IE9

Hello all,

Am wondering if you can help. I'm using a simple snippet of jquery to show/hide or toggle the visibility of a div. This is working fine in all browsers accept Internet Explorer 9.

I've created a jsfiddle to show the problem;  http://jsfiddle.net/JaVfp/

The script even does its job it's just the way it does it! They say a picture tells a thousand words, here's the problem: