
Maybe you have a conflicting mod? Try slowly cleaning out your Downloads folder and see if that cures the issue. Or, you can just move your Downloads out of The Sims 2 directory and try running the game without any CC. If the problem persists, you may want to look into a game patch made by EA to fix these problems, you can get patches here:
http://thesims2.ea.com/update/index.php You can also get the Sims 2 HCDU here to scan for conflicting mods or custom content.
http://www.simwardrobe.com/ under "The Sims 2" and then "Programs" and the file name is: Sims2HCDU-02.00.03.zip If it doesn't find anything, bear in mind it is not always guaranteed to fix the problem, and it's a good idea to run it more than once.