THanks to all who gave me ideas.
HEre's what I did
1. Deleted the user configuration file(maybe it was corrupted)
2. Re-ran the install (to repair the software)
3. Re-installed, recopied my files back to the Family Tree docuements directory
SUCCESS! (and several hours later - o well)
4. By the way, support at ancestry.com/family tree maker was great