www.wysiwygwebbuilder.com

Following installation on a new computer, authentication returns message that the license number is for a different email address.
This is incorrect. Please advise. I will provide serial number, although this would not seem to be the proper venue.
Thank you.

This usually indicates that you have accidentally used the wrong email address for the first activation.

You can look up the email address that you have used on the old computer in the registry:
HKEY_CURRENT_USER\Software\Pablo Software Solutions\WYSIWYG Web Builder 14\Settings\Name