I have The Sims 1 (original disk) I also have expansion packs which include; On Holiday, House Party, Superstar, Deluxe Editon and Triple Deluxe Edition. I can install them perfectly, but sometimes it says "It has come to our records that you have already installed a previous expansion pack" the it tells me to uninstall it. Other times I can play then it freezes and says "The Sims is not responding" then uninstall's again. I'm using Vista Software. Is there anyway I can prevent this from happening?