Graphics card, cpu speeds, system memory, operating system etc, and what expansions you have for The Sims 3 along with your game's current patch level.
External Links.But of course, most of all if you run into something major and you feel it's something we did wrong, please do let us know.Please give as much information as you can, if you can also let us know a bit about the computer you are using, i.e. Routing crapness - Sims don't take the most direct and logical route from one place to another.