Update: for the DCS-2132LB1:
They finally came out with a new firmware version. I tried version 2.13.03, and it seems to fix the problem.
It seems that maybe they were doing some major work on fixing up the more complex event system found on, I assume, newer cameras. It's far more complex than on the 933L where you just define the email server and motion detection, instead of defining all these servers, medias, and events, which compete at the same time.
Probably they had the fixes in upgraded firmware for other more popular models, and finally got to this one.
So far, I'm pretty happy with the result.
Thanks,
Scott