I am getting "Uncaught TypeError: Cannot read property 'path' of undefined" in ProcessPageList.js:155 
code: 
                if(options.selectShowPageHeader) {                     $.getJSON(options.ajaxURL + "?id=" + options.selectedPageID + "&render=JSON&start=0&limit=0", function(data) {                         var parentPath = data.page.path;                         parentPath = parentPath.substring(0, parentPath.length-1);                         parentPath = parentPath.substring(0, parentPath.lastIndexOf('/')+1);                         var label = options.selectedPageID > 0 ? '<span class="detail">' + parentPath + '</span> ' + data.page.label : '';                         $root.children(".PageListSelectHeader").find(".PageListSelectName").html(label);                     }); 
And in template's settings page, under Parent, I get Uncaught TypeError: Cannot read property 'numChildren' of undefined  ProcessPageList.js:323 
PHP Version is 5.3.2-1ubuntu4.20 
System: Linux rs206486 2.6.32-37-server #81-Ubuntu SMP Fri Dec 2 20:49:12 UTC 2011 x86_64