I have an iMac and its has the latest version of software etc......iPhoto does not respond at all well. The dreaded beach ball is continuously spinning on the app
iMac, OS X Mavericks (10.9)
Back up all data.
Quit iPhoto if it's running. Force quit if necessary.
In the Finder, temporarily move the iPhoto library (usually located in the Pictures folder) to the Desktop. Relaunch the application. It should prompt you to select a library. Click the Create New... button. If a new, empty library is created successfully, try adding an image, such as one downloaded from the web.
After the above test, quit iPhoto again and put the original library back where it was, overwriting the test library. Post your results.
iPhoto poor response and the dreaded beach ball spinning continuously
