Hi Allen,
When you say the Mac version isn't behaving or holding certain values, what is the issue and what are the values? I ask because the simulator has 100% identical code between Windows/Mac versions and it should not forget any values within a design.
If it's the user interface issue you reported earlier with the off load voltage calculator having a set of default values every time you go in (known issue from Mac UI), this should only affect things when you go in to select a new transformer - that's not something you would change repeatedly. And if you did, simple logic tells me that you would have to key in fresh values for the transformer anyway?
Regards,
Duncan