I have just installed the sims superstar version, and on the screen there are black dashes running all along it, and it's moving a lot slower. I appear to have all of the correct requirements for this game, and haven't had any problems in the past. Does anybody know what this could be? Thanks

Uh-oh. This happened to me. When it happened, my computer completly crashed a few days later and my sister had to delete everything on the computer to make it work. We had to do this a few times and I wasn't too happy but after we did it, we only installed the Sims and another game(and internet and all) and it runned smootly. But that was my old computer, which only had 64mb and 300 RAM(woow really bad haha).