Bad CC - Instructions on how to find it and how to get rid of it (including list)
There is a new thread I help in @AnswerHQ. This is mostly to ensure it's continuance should EA ever decide to close this forum. You can find the new thread here: http://answers.ea.com/t5/The-Sims-3...
Move all sims in your savedSims folder to the desktop and see if the stuff is gone. If you want to keep those sims, add them back one by one to find the guilty party.