right column too wide in internet explorer

Hello,
the right column of the myfolio-template is much wider shown in internet explorer than in the other browsers (FF, Chrome, Safari) on my computer (Win7 64bit).
Please view the screenshots:
IE:

FF:

Chrome:

Safari:

View the original page here: http://www.studio-papillon.de/news/209-bright-eyes
Do you have any idea what the problem could be?
All the browser are in the current version and I already updated the template files.
Best regards
Thomas

Hi

Is it happening to this page only ? Because if Yes this can be caused by validation error. I've also noticed one small mistake which can be responsible, but I would need an ftp access to run some tests first.