Photos are flashing when selected

Question

I just deleted a whole bunch of photos (thousands) and now when i click on a recently added image it brings it enlarges and then flashes betweent he single image and the events listing in the background.  it will only stop if i click on the events or places tab on the upper left.
help! and thanks!

Answer 1

Try this:  launch iPhoto with the Option key held down and create a new, test library.  Import some photos and test to see if the same problem persists. Does it?
As an initial fix attempt 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 (Snow Leopard and Earlier).
or with Lion and Mt. Lion from the User/Library/Containers/com.apple.iPhoto/
Data/Library/Caches/com.apple.iPhoto folder
3 - launch iPhoto and try again.
NOTE 1: 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.
OT