...Are you sure all
your games are patched? I said this earlier today in another thread.. hold on.
Are you sure all
your games are patched? If you have anything more than basegame, you need to make sure that all your games are patched. EA screwed up patching. The best way to check that you are all up to date is to use this tool from Mod The Sims. Here: http://modthesims.info/download.php?t=409829
Just download and extract the EXE anywhere. No installation required.
Other than that, this is a huge update, and if you have any mods, you may want to look into testing them. However, the problem does not seem to be of the mod nature, because the game works.
Have you updated your OS recently? Checked Graphics Card drivers... that seems to maybe the problem.