Log out problem (slightly different than the one by Frollard) Answered
The case: I log in at Instructables, then I view a couple of other sites (e.g. Google).
When I return to Instructables, I can see from the top right hand side of the page that I am logged out.
However, when I click on a random Instructable, the Instructable opens and in the right corner of the screen it says I'm logged in.