The navigation menu on the right seems to drop down below the two left columns in Internet Explorer. I assume it's a padding issue, but I can't seem to fix it. I've don't actually have padding specified on any <div> where there is also width specified. I've got an extra <div> inside the container with the conten to specify padding, so to get around the broken box model (or so I thought).

I tried to simply remove all padding from the page and still got the same result.

Can anyone point me in the right direction here?