If you use the ID Number field in Legacy, have you tried a search for duplicate ID numbers?
Go to; My Toolbar, Merge, Find Duplicates, Special Duplicates Search, Find duplicates using only User ID number, Continue. I ran the search for duplicate ID numbers and found 57, 416 duplicate ID numbers per the Legacy version 8 software. I have ran it in the past with previous versions of Legacy and did not find many. When I go to the Name List, I only have 66,194 people in my database! I do have duplicate ID numbers starting with "B", because I imported data long ago for Ingalls listed in Burleigh's 1903 book on the Ingalls. The researcher who added the data to her genealogy program added ID numbers starting with B for Burleigh to indicate the number came from his book. The book was published in 1903, so many of the individuals she added to her data are descendants of some one in his book. She handled that by using the number for the last ancestor listed in Burleigh plus a dash number indicating the number of generations an individual is removed from "B1". So, there can be many descendants with the same ID number such as B1222-10. I did a search for ID numbers starting with "B" and found 3,948 People with ID Numbers starting with B. Not all of them are duplicates! I did a fairly extensive audit of all my ID numbers and found very few identical ID Numbers, except for the Burleigh numbers. Looks to me like there is a software problem. Jay Ingalls Legacy User Group guidelines: http://www.LegacyFamilyTree.com/Etiquette.asp Archived messages after Nov. 21 2009: http://www.mail-archive.com/legacyusergroup@legacyusers.com/ Archived messages from old mail server - before Nov. 21 2009: http://www.mail-archive.com/legacyusergroup@legacyfamilytree.com/ Online technical support: http://www.LegacyFamilyTree.com/Help.asp Follow Legacy on Facebook (http://www.facebook.com/LegacyFamilyTree) and on our blog (http://news.LegacyFamilyTree.com). To unsubscribe: http://www.LegacyFamilyTree.com/LegacyLists.asp