One of my favorite Thesis skins is Looks Good Naked. When the latest version of Thesis, 1.6, was released, this skin broke. Thesis 1.6 overhauled the nav menu code, which means all skins needed to be updated or they would break.
Finally, the author of Looks Good Naked took the time to make the necessary upgrades. Now you can use LGN once again, without having to modify the code yourself.
