Just a quick note, mostly for myself: the following error at sitemanager.aspx results from view state not being active. The language setting is unfortunately Swedish, so I doubt this will help anyone…

Webbplatshanteraren: ObjectList ObjectList1 är i ett okänt tillstånd.   at Microsoft.SharePoint.Publishing.Internal.WebControls.SMObjectList.Handle_LoadCompleteEvent(Object sender, EventArgs e)