I am having the same problem only it's in PAF 3.0. Source 19 invalid less pointer Source 19 invalid parent pointer Source 20 invalid greater pointer Source 22 invalid less pointer At first I thought it was because the person with RIN 19 was older than RIN 20, and is a stepbrother, so he was b. before the marriage of second family. Source 22 RIN 22 is not connected to this family and the error just appeared. The other 2 I have been trying for months to get them corrected. When I run a check and repair, some times they get repaired, then the next time, the errors appear again. I also have 4.0 and it shows only one Source 19 less pointer 20 is not less. I don't have a clean backup anymore. Someone said I may have to reinstall 3.0. I haven't tried that yet.