I have a Photostage registration code from 11/15/2018 and have been using v5.15. I downloaded v6.12 released 5/28/2019, wanting to try it even though it is a few days past 6 months. But the Register Software menu item is greyed out. How can I try my registration code on this? Can I use this version, or must I use v6.11 from 5/8/2019?