@ Olo: Yes, this! ^ I also was unable to log out of my notebook on a public system until I googled and found this thread. I appreciate that you're trying to clean up the UI, but please, an obvious "Log Out" button in the top right corner is absolutely necessary. Why, even this forum adheres to this fundamental design pattern. This is what users all over the web expect to see, and making it otherwise just confuses things and is in fact an obstacle to productivity.