I'm running DNN 5.6.1 on an ASP.NET 4.0 back end.  Until recently all was well, but at some point in the last few days, the Login control has effectively stopped working.  Note that I am using Oliver Hine's Styled Controls (but I don't think it's related).  Now, the weird part is that (when I still had Admin access) using the login control would register a login in the site log, but it would effectively act as though I wasn't logged in. 



Further, I tried to install the CodingStaff Login control (to see if that would fix it) but one of the steps in the setup for it is to add the Account Login Module to the page, and I don't see that as a module anywhere.  I'm thinking it may have been removed in newer versions of DNN, but I'm not sure.



At this point, I'm stuck, as I can no longer login as an admin.  As part of my troubleshooting last night, I changed the cookie name in the <forms> section of the web.config, just to see if it was related.  One other interesting note: if I change the cookieless setting to UseUri, I can get to the Admin page once, but then it asks for credentials everytime I move from page to page, which is a temporarily solution, but obviously not a great user experience.



Any suggestions?  Thanks!