@biancaadav Does it help to play in windowed mode? If that alone doesn't make a difference, try lowering all the graphics settings as well. If the game is then stable, you can try raising one setting at a time to see whether any of them cause crashes.
Fast forward has always been a little dicey in Sims 3, especially on low-end hardware. It's unfortunately not likely to change, although it's possible lowering one setting or another will help.
Thank you for responding. How do I play in windowed mode? I'll try that and will give you an update
@biancaadav You can switch between fullscreen and windowed modes by clicking cmd-enter either at the Main Menu or once your save is loaded. If that doesn't work for some reason, as it doesn't for a few people, go into Documents > Electronic Arts > The Sims 3, open options.ini, cmd-F to search for fullscreen, and set it to 0.
