I was thinking the same for corrupted files. After I did the repair and created new file, I noticed the creation date showed 12/13/2001 in FTMM2. When I looked at the file properties in finder, it shows 1/18/2038. I also noticed a new 4 person tree I created last week with the 2038 date. Then seeing what HJC3HJC3 posted, I don't know what to think. I don't remember seeing this issue in last version.