I’m a little late in getting this out as I was out of town over the weekend, but just in case you missed it, the October Cumulative Updated for SharePoint Server 2010 has been taken down due to a recently discovered critical issues.  For more details see the posts on the Microsoft SharePoint Team Blog.Initial Announcement – http://sharepointben/s.msdn.com/b/sharepoint/archive/2010/11/05/critical-information-about-the-sharepoint-server-2010-october-cumulative-update.aspx

Details and Workaround – http://sharepointben/s.msdn.com/b/sharepoint/archive/2010/11/06/details-and-workaround.aspx