This is a quick note for people who are interested in participating in
Thursday's VoIP-based webinar. I've just found out that Webex supports VoIP
audio *only on Windows*. You may be able to hear and/or speak using other OSes,
but for best results, please try to participate under Windows. (On an
experiment I performed recently with a colleague on a Mac, he was able to hear
me, but I could not hear him.)

I apologize for not knowing about this restriction earlier, but these are
shakedown webinars. This is one of the things that just got shaken loose.

Thanks,

Scott