Thanks for all the help, I have tried most of the ideas suggested and have still got more faces being photographed! It is randomly re-photographing faces so now have several copies of the same faces! As I delete them it takes them next time I go into iPhoto! I am working away from home until Dec so shall just not use iPhoto until I get home. I will then backup all the original photos, trash iPhoto and re-install the programme so wish me luck! Thanks again:)
