2oldman
I thought Sonar was only good for 2 machines. Of course I back up my work files often.
So what about the newer releases?
It is. If your pc breaks, you still have the opportunity to install on the new one. Still using only 2 pc's

And this I heard from the bakers themselves (in another thread some time ago). You cannot use them at the same time, is the only restriction.
The new line is in a whole other league. Bit of a learning curve, but man is it stable / cool on my end. By a far the best product Cakewalk has ever made, in my opinion.
If you have the means, do the upgrade to lifetime Platinum member.
All the best.