Here are some of your options:
Click on the Apple icon in the top left and choose software update.
Update iphoto to the latest version. Restart.
Let me know if this works or let me know if it was already at the latest version if this does not work:
These are your options:
1. Restore the iPhoto library from the most recent backup that predates the issue.
Advantages: Always works, if library damage is causing the problem and the backup is intact.
Disadvantages: Impossible if you don't have a backup. All changes made since the backup are lost.
2. Repair or rebuild the library. Be sure to back it up first.
Advantages: May solve the problem with no loss of data.
Disadvantages: May fail. May take a long time if the library is large.
3. Scavenge the library with a third-party application called "iPhoto Library Manager," which you can find in a web search. From the application's menu bar (not the iPhoto menu bar), select
Library ▹ Rebuild
Advantages: All images should be preserved.
Disadvantages: All books, calendars, and slideshows will be lost.
You can try these methods for fixes. If they do not work (it could be several things; we have to troubleshoot them)
we will go from there. Please update with the results if fixed, or more support is needed.
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