Two header images appearing in IE9

Hi there,

I’ve found your support forums very helpful for the creation of my site, but I’ve come to one problem that I’ve not been able to find any info about.

For some strange reason, two header images are appearing when I open the site in IE9. In Firefox and Safari, only one appears. The secondary image is also clickable (the original is static), and links to my Twitter page (the twitter icon sits beside the original header image).

If anyone has any clues what might be wrong, it would be much appreciated!

http://test.lisatanmillinery.com