I have had my sims 3 for a longtime time now. Before I only have generations, pets, town life and seasons. Recently I bought late night and a few worlds. Now my sims game keep crashing every hour and I could not enjoy my game like I use to. I also downloaded stuff off of sims3resource.com but I doubt that cause any issues, I hope not but I am unsure on how to get it to stop crashing. I tried installing and reinstalling. I'm now thinking if I rebuy the base game it will fix the problem. But I was also wondering if I buy it from origin can I still use all my expansion packs from amazon? If not I just wasted a ton of money. -__-MacUser