Hi, John
I did tell you that our Bry was away ?? :-/.
Anyway, I will try to help in his absence, but be warned I'm not the expert on this stuff, here is what I need from you...
When you see the 'activation code dialog', click activate over internet, when this fails you will see a button labelled 'Details', click the 'details' button and copy all the text it then shows you, send the text to me and I will try to figure out what has invalidated your license.