I have just purchased the duplicate 2 plugin but so far have failed to get it to work. It runs and comes back with a report of no duplicates. However I think this might be because all of my numerous photos are filed in folders and subfolders and my problem is less that of finding duplicates in any one folder than finding them scattered across many folders over many years, Thus I have been presenting to the plug in a highlited selection of some folders in my library and telling it to search. It seems like a happy dog but is unable to understand the game. How should I talk to it?