IE7 Image Distortion

On the website I'm working on I'm having troubles w/ IE7 distorting my first couple of images on this gallery page: http://www.markanteducational.com/teacher_stations2.html

Nothing changes when I refresh the page, however, if I click onto a diff. page and then back it's fine. Also, sometimes clicking on a thumbnail before the refresh causes the thumbnail strip to disappear.

I have several of these gallery pages, made from a template so I don't know why only this page has these issues.

Firefox and Safari seem fine.

Have you tried specifying the width and height of each photo in your html? Doing so should resolve the issue, since your telling browser the exact dimensions of your photos.