I haven't had this problem since then. A while back I was trying to figure out why the "Remember Me" never works and through that process I changed the "timeout" in my web.config file to a higher timeout period. <forms name=".DOTNETNUKE" protection="All" timeout="60" cookieless="UseCookies"  />.

When I began running into the issue of not logging out, I finally set this back to the default and restarted the IIS application, cleared the cookies again and then just walked away from my computer before I got too angry for the night. I came back to it several hours later and was able to log in. Since then I have left the default setting on the timeout and have not experienced the problem anymore.

I am interested in knowing more about logging into several portals and that impact. I have several portals that I work on at any given time and I was that night, now that I think about it. 

How can I get the Remember Me function to work? Has this ever been resolved? I have been using DNN since the first release of version 4.x and I have yet to see this operate properly for me. Increasing the timeout seemed to help as a workaround, but not very effective if I can't logout. Any ideas?

Thanks very much!