I'm still having crashes with the latest version. What can I do?

I have the recent version of iPhoto (9.3.1) and still diplays a message about MobileMe has suspended the service, and when I click "Ok", iPhoto crashes and freeze. I already try to delete iPhoto and redownload and the problem continues.

I can't use it.

I have a Macbook Pro 15" 4GB NVIDIA GeForce 9400 and with more tan 290 GB free.

What can I do?. HEEEELLLPPP!!!!