So I'm flying EDDF-WSSS but had to leave for a few hours for real-life purposes; I believe I did a task switch over the Caspian sea or thereabouts. When I come back, several hours later, the plane's still over pretty much the same spot. Obviously, I've got "pause on task switch" turned off, therefore *something* must have took the focus over FS9. First time this happens in several years of FS, and first time on my new system (iMac with Windows 7 on Bootcamp, which, by the way, runs FS9 pretty well).What gives? It seems to me that my computer did go to sleep before when FS9 was on, and did not cause it to pause, unless I'm mistaken...

You didn't mention what addon plane it was.Some addon aircraft offer the 'Pause on TOD' option.So in such case you need to turn it off (in their config/setup options).FSNav can also offer that, but I guess you would have known before.I don't know much about Macs or WIndows 7, so I can't say if they might be the culprit.I am sure someone else can jump on that point.BTW I didn't know you can enjoy MFS on Macs.You learn something every day.