Apple has released an update to iPhoto that fixes a number of issues. The update weighs in at more than 757MB and is available for download through Apple's online support website. It should be available through the Mac App store soon.
What's New in Version 9.4.1
- Improves the reliability of syncing to iOS devices via iTunes
- Fixes an issue that could cause iPhoto to quit unexpectedly when using the Export command
- Addresses an issue that could cause iPhoto to quit unexpectedly when upgrading multiple books, cards, and calendars
- Resolves an issue with downloading and viewing photos synced from Facebook albums