My sims 2 was running fine, until recently. I have not altered the game other then adding a couple expansion packs. I can't get the dialog box to pop up when I press Control, shift, and C. I used to be able to. I've tried to fix this problem by downloading patches and I even deleted and then re-installed all my sims 2 materials. What can I do? Is it a vista problem or sims 2?