You can apply comments to the wrong photo by accident by doing the following:
- Select an album or Last Film Roll that has more than one photo
- Drag your photo zoom slider all the way to the right so you see just one photo
- Select photo 1
- Type in some comments for photo 1
- Now Click on the down arrow in the photo pane (or scroll down with your mouse scroll wheel)
- Notice the comments box still has the comments for photo 1
- Click in the blank area around the photo
- Photo 1’s comments are now applied to photo 2
Solution If you edit comments this way, edit the comment and then click in the blank area to get iPhoto to save the comments before you scroll to a new picture.