Hi. I've use WYSIWYG over many years and on multiple generations of computers. I just purchased a new computer and reinstalled both version 10 and version 11 as I'm in the process of migrating. I used my corresponding registration numbers for each, and while I got the confirmation screen, the about box says they are unregistered (I also get the WYSIWYG logo on the pages). Guess I've upgrading computers too often

How do I deactivate the versions on the computers I'm retiring so I can register the versions on the new machine?
Thanks
Mike