iphoto shuts down my macbook?

Hi Bobwilt81,

If you are having an issue with iPhoto causing your Macbook to freeze, I would first try to isolate the issue by testing in a new user, as outlined in the following article:

Apple Support: Isolating an issue by using another user account

http://support.apple.com/kb/TS4053

If the issue persists in the new user, you may want to follow up with the one application troubleshooting in this article:

Mac OS X: How to troubleshoot a software issue

http://support.apple.com/kb/HT1199

If it appears instead that the issue is specific to your user files (i.e. issue does not persist in the new user), you may want to try rebuilding your iPhoto library (make sure you have a current backup first):

iPhoto 6 and later: Rebuilding the iPhoto library

http://support.apple.com/kb/ht2638

Cheers,

- Brenden