Like the subject line says. When I click “unanswered” from the main green nav “banner”, and get questions with 0 (zero) answers. When I then try to sort those questions by date, the questions are all (?) answered! Note the formulation of the URL:
See a screenshot, if you like.
Do the colons ( break the URL? Is this an “Askbot” bug? It certainly doesn’t look like a “feature”!