I recently just put this on my Snow Leopard Mac and every-time I try to run, it crashes on startup. After some searching here it looks as though at some point Adobe may have released an update/patch for it. But I can't find any more info on it or a download link. Can someone please shine some light on this subject?
The update would be for CS4 >_>
also, look at the top of this page, you'll see a 'Downloads' link.
The thing is also, for such crashes, the problem usually lies deeper than a simple update patch.
Have you tried uninstalling AE, installing Rosetta, restarting and then reinstalling AE?