Hi Peter,
I had difficulty in updating in XP. I have it installed on my desktop and a laptop with XP. I got messages on both machines that the updater failed to download. I finally found their website and manually downloaded and installed the update and it upated with no issue.
When I did the update on my field laptop, a VISA Home Pro machine, the auto update worked with no problem.
It would be nice if Simulation Cirriculum, now the owners of Starry Night, would evolve what this new update covered.
As far as your Mac Machine, did you to to the website and manually select the Mac version update? If not, try downloading it and install it manually as I had to do for XP. Good Luck
Randall