I can initally make a sim and get started; when I go to add custom people to my town in Create a Household.. it freezes, I can usually minimize out and come back and it'll unfreeze, but it has some black parts to the screen, then it will refreeze and crash.. anyone had any luck fixing this? My computer is pretty new, just purchased in October, I still have windows 7. I have about 6 expansion packs.. I downloaded all content from Amazon. Getting very annoying, I spent a lot of money..