Black page when poping-up video in IE

Hello,

I have an issue with Internet Explorer (it's working fine in Firefox, Safari and Chrome, both in Mac OS Lion an Windows).

I'm using the pop up plugin to display a Youtube Video. In IE, when you click the "X" to close the pop-up, it remains a black div and the content is no longer reachable.

The page is: http://www.papaenapuros.com/una-dulce-espera-libro-de-embarazo/

Is it a bug? Any ideas?