I just ran into a client who’s WordPress installation broke due to the 3.3 upgrade. The symptom was the WYSIWYG editor didn’t load (which was just a big Javascript error loading supporting scripts). This could manifest itself in any Javascript functionality (admin bar, popup menus, etc) not working. The Fix The fix is easy, you [...]
Help: WordPress broke after 3.3 Upgrade is a post from: Sean Walther's Blog