IE9 positioning error

I inherited a WP site from someone else and have been doing edits, changes, etc. Recently, with IE9, the layout of one of my pages is messed up- looks fine in Firefox, Chrome, and IE compatibility mode.

Here’s the link- .

It’s basically several smaller divs nested within 2 larger divs. The first small div is messed up in IE9. When looking in Firebug, it looks like it’s repeating one of the larger divs. I’ve looked in the code and don’t see any missing close tags, etc.

Any help would be appreciated.