I just installed iPhoto 11 in two computers. I am very disappointed because of the problems I've been having in both.
1) The application runs slowly when compared to previous versions.
2) When I double click on a photo to make it bigger, in some cases the photo does not become amplified and I see an image with a huge black frame.
3) Some of my photos have become "unviewable" because when I click on them, the screen goes black and a big warning triangle with an exclamation sign in its center appears.
I think that I may go back to the previous version, that worked flawlessly. Or, maybe I should wait for the upgrade that may be coming out with the solution to this problems.