three different computers - as long as they all belong to you and are not used by anyone else except you, the licensed user.
/I did fix the spelling on license so not a true quote.
Anyway I posted to say as I understand it you do not have to 'own' all three machines, but you do have to be the one using the licensed product on a given machine.
Example - at our studio we have a computer that has RB & RTs installed. It is for all practical purposes a 'co-owned' piece of equipment owned by Barry and I as is everything else there. But I am the only one that uses it there, so there will never be two or more instances running at once. Barry owns PT and prefers that as he never generates anything but RD's, so we're legal as far as I can tell.
As long as I am the user on that machine it has been fine so far.
.. or maybe PGMusic is just lenient on licensed users not intentionally making unlawful copies.
Come to think of it, I can hook the external hard drive up to any computer and run RB, long as it is only licensed for three different computers at once.
I have removed it from my laptop to allow me to use it to record audio at work. Then returned the licenses back to the original systems when done. I think Gordon Scott nailed it; it is not about one licensed user and his needs, it is more to make sure some Authorization code isn't sold on the 'net a hundred times for $25 or something.
As in remember Napster? I think the idea is - someone can't go giving your work away without a mechanism to stop it when needed. Not so much about whether you as a licensed user have two computers open at the same time in your home. Or need it somewhere else while on the road etc.