So are you saying theres a problem with my graphics card?? I have the NVIDIA Geforce 320M on a Mini. I hope its not that because it would be my 5th time going to an Apple Store to get a card replace, plus I'm out of warranty.
Have you tried deleting all the cache that the program leaves behind, I think it's somewhere in the Documents folder. Another way you can try, is use time machine to restore your Mac to an earlier time before you had the problem.
Wow, im having the same problem too:( Mac OS X Lion 10.7.1 (Mid 2010 MacMini) 2.4 Ghz Intel Core 2 Duo 2GB RAM 1033Mhz DDR3 NVIDIA Geforce 320M 250 MB I already tried uninstalling the Sims 3 and all of its stuff and expansion packs, then reinstalling, and then applying the update from the launcher.