Please Help! Glitch! I bought Sims 3 about a month ago. It was going fine, then my sister saved over my game. The next day, I went on and had to start a new city. For some reason, every city or game I had was gone. I started again, closed it, then it did the same thing the next day. I started another new game and this was working fine for a week or two, but then the other day I put the CD in and it told me to install it, like it had never been on the computer. I clicked the desktop icon and it told me there was no CD in the drive, though there was. Please, help. My computer is a Vista, I don't know if that affects it or not. :(
