As the Mac game was failing, I fired up Parallels and it worked fine there. After a few days of 'cloud synching' on the Windows version in Parallels, the next time I tried starting up the Mac version it asked if I wanted to synch the 'newer' version which was from the Windows environment. When I did that it let me continue the game I was playing in Parallels (native Mac is a bit smoother than running the Win version in Parallels). Not sure if the 'new game' problem still exists, won't try that again until I have run through the current game.