The site is experiencing some email problems from the host. I've talked with them and we can't seem to determine what the problem is. None of the code has changed so it's obviously a configuration issue. I've started manually sending out the registration confirmations and will try to keep up with those.
I may consider moving to a complete new forum system and using this one as an archive. I'll need to get some feedback from Marv as well as find the time.
Sorry for any inconvenience this may have caused. Please use PMs until the problem can be resolved.
Hank