I've vegas pro installed in my desktop and laptop computers, never used at the same time, they are simply installed as backup, so I use the laptop when travelling, sync and use desktop when on the office....

Today when I started vegas 14 i got and anouncement from magix service center for device management, that I needed to deactivate one device for starting the program.....

and an advice that you can do it once a month.....

I've just upgraded my computer hard disk, so it seems to be the reason of this problem.... deactivated and activated again, and everything seems to work in both computers...