Currently Being ModeratedNov 10, 2012 12:59 PM (in response to felix47)
Create a new account (systempreferences -> accounts or Users & Groups on 10.7 and 10.8), make a new Library in that account, import some shots and see if the problem is repeated there.
Currently Being ModeratedNov 12, 2012 3:18 PM (in response to felix47)
To re-install iPhoto
1. Put the iPhoto.app in the trash (Drag it from your Applications Folder to the trash)
2a: On 10.5: Go to HD/Library/Receipts and remove any pkg file there with iPhoto in the name.
2b: On 10.6: Those receipts may be found as follows: In the Finder use the Go menu and select Go To Folder. In the resulting window type
2c: on 10.7 they're at
A Finder Window will open at that location and you can remove the iPhoto pkg files.
If you purchased an iLife Disk, then iPhoto is on it.
If iPhoto was installed on your Mac when you go it then it’s on the System Restore disks that came with your Mac. Insert the first one and opt to ‘Install Bundled Applications Only.
If you purchased it on the App Store or have a Recent Mac you can find it in your Purchases List.
Currently Being ModeratedNov 12, 2012 7:07 PM (in response to felix47)
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
Click to view full size
3 - 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.
NOTE 2: In Lion and Mountain Lion the Library folder is now invisible. To make it permanently visible enter the following in the Terminal application window: chflags nohidden ~/Library and hit the Enter button - 10.7: Un-hide the User Library folder.
Currently Being ModeratedNov 17, 2012 11:13 AM (in response to felix47)
Have you tried reinstalling iPhoto from the iLife 11 disc and the upgrade thru the Apple Downloads webpage to whatever version works best for you?
If you do try a reinstall you'll have to delete the current application and all files with "iPhoto" in the file name with either a .PKG or .BOM extension that reside in the:
HD/Library/Receipts folder (10.5 and earlier)
or from the /var/db/receipts/ folder (10.6) .
or from the /private/var/db/receipts folder (10.7 or later)
Then install iPhoto from the source it came from originally and apply the updaters.