Hi Bob, you can do the same for the free version installed on the other computer. The older version is just overwritten.

The only thing you need to be careful about is updating the Polyboard’s Quick Design Libraries, which is a completely separate download and process. If you are already happy with and are using your own custom libraries, rename these before installing a new version of the libraries from our site. They will not then be overwritten, and you can take new elements out of the new libraries and add them to your own as you choose.

Cheers, Stefan