Doesn\'t toggle Not yet rated

Very useful add-on, so I\'ve been waiting for the new version (2.0), which I\'ve just installed. However, it doesn\'t seem to toggle :-( When I press the button it does show \"All Headers\", as expected, but it doesn\'t switch back, at least not with my TB. It needs fixing it seems.

This review is for a previous version of the add-on (2.0.0).