Just prior to the 13805 revision, the new menus function pretty much worked with the exception of the child-menu hierarchy. Sub-menus would become the child menu of the sub-menu above it after you saved the menu layout. For example, if you had a category with a list of sub-categories indented once underneath it, when the layout was saved, the subcategories would displayed in a step pattern with each sub-category a child menu of the sub-category that preceded it.
Error: a(".menu li").draggable is not a function Source File: http://mywebsite.com/wp-admin/load-scripts.php?c=1&load=jquery,jquery-ui-core,jquery-ui-tabs,jquery-ui-sortable,utils,nav-menu&ver=6b258d5b7154e050607e22b1cd5f0ec2 Line: 193
BTW, I'm running code from trunk via SVN with a variety or popular plugins on a 1&1 shared hosting account. Everything else appears to be working normally.