I'm on the demo 15-day trial, but I thought I could add users during this period.  If not, I guess this is an easy fix.

I'm trying to add one user.  After I fill in the info, it will let me hit Save, but then it just sits there with Save greyed out, but Cancel is still an option.  Nothing shows up in my Users list.  I'm the only one there.  Can anyone tell me how to successfully add a user?  Thanks.