I have 15000 photos in my 1Phooto library in 58 events. I have also made 27 slide shows from some of these events. When opening iPhoto, the photoscome up slmost instantly but the side bar seems to take forever to come up. Is there s limit to the amount o

Question

I have 15000 photos in my 1Phooto library in 58 events. I have also made 27 slide shows from some of these events. When opening iPhoto, the photoscome up slmost instantly but the side bar seems to take forever to come up.  Is there s limit to the amount of photos yu can have or to the amount if items in the side bar?

Answer 1

Try this basic troubleshooting technique:  make a temporary, backup copy (if you don't already have a backup copy) of the library and try the following:
1 - delete the iPhoto preference file, com.apple.iPhoto.plist, that resides in your
     User/Home()/Library/ Preferences folder.
2 - delete iPhoto's cache file, Cache.db, that is located in your
     User/Home()/Library/Caches/com.apple.iPhoto folder. 
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3 - reboot
4 - launch iPhoto and try again.
NOTE: If you're moved your library from its default location in your Home/Pictures folder you will have to point iPhoto to its new location when you next open iPhoto by holding down the Option key when launching iPhoto.  You'll also have to reset the iPhoto's various preferences.
OT