What is causing this double scrollbar/whitespace?
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I've got a strange problem with Chrome, Firefox and obviously IE. 
I'm building a WordPress theme for my portfolio site/blog and everything has been okay, up until today when I viewed the site in chrome and suddenly there was a large white bar at the bottom of the page, when the page is viewed in Firefox/IE it shows a double sidebar. 
here is the page http://iamdannygreen.com/?p=5
Please excuse the ugly header in firefox, havent yet bug fixed all browsers. 
Any help would be greatly appreciated.
Thank you 