See the post just a few days ago by David Kropp:
Please email support@engsw.com if you are having any issues with the PowerCADD 10 beta including licensing issues. Please include "PowerCADD 10 beta" in the subject line!
Please email support@engsw.com if you are having any issues with the PowerCADD 10 beta including licensing issues. Please include "PowerCADD 10 beta" in the subject line!