Can you check which version of the theme you have installed, if you click on appearance > themes and then on the theme itself you’ll see a version number in the corner.

This example is for a different theme, but the version number will appear in the same place. http://screencast.com/t/ssCCS1prLdr

Also disable any third party plugins you have installed in case any of them are affecting the admin area. Make sure you’re on the latest version of WP.