Hi Rich:
I am on Windows XP on my PC and there is no little wheel at the upper right hand of the page, however, you got me to looking around and...
There are 3 small horizontal bars in the upper left hand of the page that does open up a menue.
Once signed in, your name appears at the top of the list replacing the sign-in link.
To sign-out, you have to click on your name and scroll to the bottom of a new menue.
Trust this might help others.
Thanks...