I used to be very happy with this plugin, but since a while (I am not sure how long, but about six week at least) the spam-queues of my network sites fill again like madmen. I have Akismet network activated and CC only for sites in the network with comments enabled. This used to work, but it does no longer. I also have Bad Behavior (also network activated). The settings are to trash uncompleted captchas and to not send them to the spam queue.
Did anything change that I have to look at?