I am using iPhoto 9. I did put two faces on the corkboard but it has continued to take snapshots of every face in my photos every time I use iPhoto without me asking it (it is even taking shots of hands, arms and legs and other obscure objects now!)
I'm going to go in the mundane direction and suggest that you try moving /Users/Your short name/Library/Preferences/com.apple.iPhoto.plist to your desktop, then restart your Mac; OS X will create a new file as needed.
If your problem is resolved, trash the original file and reset any associated preferences; if not, restore the original to from whence it came by overwriting the new one.
