Unfortunately, this forum has recently been deluged with spam, and the time it takes me to combat it has skyrocketed. Until I can devise some more safeguards, it will be closed to new registrants via the registration button on the forum. Exisitng users may still use the forum.
In the meantime, if you are a guest to this forum who would like to register to be able to post comments, e-mail me (click on admin profile to left for address), and I will register you and send you your log-in information. I realize this is awkward, but hopefully it will get our forum off the spammer's lists.
It is shameful that we humans are wasteful even of this fine medium of communication.