Thanks for the reply, Nergal. Yes the duplicates are the same size, date modified, are all the same. like I said, I've used this to find duplicates before, and it was almost to easy. it might be Karma saying " no no no, you're not getting away that easy"
The search settings do not seem to make a difference. I've used the "dup finder" several times before, without any problems, but it sure has me scratching my head, and using fowl language this time.