I was bought 6 before 7 release, and I've got free upgrade to 7. Here is my question... Each time when I install PD7, I have to confirm twice with two serial number of different version. First I need to keyin PD7 serial then keyin PD6 serial, then well done. Now, I wonder which version of PD8 should I need? Can I buy upgrade version to PD8? Or I have to buy new one? If I buy upgrade version, Have I to keyin and confirm three times serial number(PD6,PD7,PD8)?
