Two other messages I'm seeing are:
ubb: Dual login might work best with the following cookie domain .exampledomain.com
ubb: Dual login might work best with the following cookie path /
Thanks so much for you help!
I'm not one to start hacking templates... I'm already using a 3rd party plugin for login/registration. It's not such a big deal.
The admin account was unique in both systems. Not sure what happened...
Any thoughts on my two messages "in the quote above"?