Long problem. Downloaded Sims 3 from Direct 2 Drive. Installed no problem. Game got to a point where it would take so long to load up and then there was major lag in the game. I decided to uninstall and reinstall. Installed fine but when it asks to update it runs the update and then says 'unknown error' when I try to run the game. I tried again to uninstall and reinstall but I get the same message after the update. This game worked fine before, what do I do?