We have a custom theme using Bones, with v.188.8.131.52 of easy fancybox. When an item is clicked, the content loads at the bottom of the page instead of the fancybox. I've disabled all other plugins, and still have the problem.
Safari shows the following error:
jquery.fancybox-1.3.4.pack.js:25TypeError: 'undefined' is not a function (evaluating 'd.onCleanup(l,p,d)')
http://lt.nashvillegeek.com/about-us has an image in the right sidebar that demonstrates the problem.