I know how we all love IE...but unfortunately, a majority of my client's site members are using that browser. Since the site (http://www.walkinghorseowners.com) was launched early this year, the header image (only the image, not the buttons, etc.) has been duplicated in IE8 & IE9.

I recently tried changing the get_header calls in Graphene to include_once('header.php') in hopes that would fix the issue, but no change happened. The header appears correctly in Chrome, Firefox, and IE7.

I noticed another post in the forum by someone having a similar issue. However, it looks like an issue caused by a function the user had added, and he/she solved the problem.
Any ideas, by looking at the page source, etc., of what could be causing this problem?
