Re: Sims 3 freezing entire screen (Mac)
@joshysven143 Unfortunately, the vertical sync setting in Sims 3 appears to still not work properly. You could try messing with it though. Go into Documents > Electronic Arts > The Sims 3, open options.ini, and search for resolution, which should bring you to a line like this:
resolution = 1024 768 0
Change the 0 to 60, then try enabling the fps limiter to 60 in the game options, at the Main Menu.
If this makes things worse, just delete options.ini and let the game spawn a new copy, which will have all default settings.
You can also try switching to windowed mode to see whether it helps. If cmd-return doesn't force the switch (try at the Main Menu), editing options.ini to set fullscreen to 0 (zero) will do it.