Guess that makes sense - The windows version doesn't create a new blank file on minimize/restore, I can see how tht would be very frustrating.
FYI, as I understand it (at least in the Win version) VW opens the file Default.sta out of the root folder on program launch. If you edit the untitled file, with your favorite scale, layers, symbols, etc, and save as Stationary, name it default in your root VW folder, that's what you will start with everytime.