I'm not receiving some alerts to threads that I've subscribed to. For instance, I've not received the most recent alerts to the Picture This... thread, and to the Re-writing your ancestry thread. The "Unwatch Thread" link on top of those pages is being shown in my screen, which proves that I'm actually watching them, but something seems amiss. @strantor has also commented that he was not alerted to my tag in the Tales from the grill... thread. What's going on?