If you did not check your software updates within the past 24 hours then you would have missed this update for iPhoto 09. The update fixes some reliability problems with iPhoto and a couple other small things.
This update addresses a rarely encountered issue involving photos imported into a previous version that could affect overall stability, and corrects references to a few points of interest and location names that were labelled incorrectly.
The update is recommended for all users of iPhoto ’09.
For detailed information on this update, please visit this web page:http://support.apple.com/kb/TS2797
It is available now via software update on your Mac