I got it and entered it, says invalid registration. I did download and install the Beta one listed in this thread as the original update would not work as thread stated. The original WAS registered just would not load assume due to Norton as thread reads. The Beta one works just will not register.
So I had same concern, am registered Pro user. Newer 552 went dead on update, Removed and tried re install, now can't install. Installed beta now works but now no longer a registered copy. Is this normal? Or is my registered version now gone?