This is recently introduced Mark.
When I go to look at pending messages I see "NaN checked" instead of "0 checked".
I also find that with nothing checked, I can still click on some buttons (instead of getting the no-entry on hover I'm getting a hand pointer), and get a verification request, for example, of "Are you sure you wish to delete these NaN messages ..."
My guess is that the latter is caused by the former in that NaN is not zero!
Malcolm Austen <malcolm.austen@...>