Thanks. I was irritated with my mature little family and started over from a backup at the end of generation 1, but they weren't getting weeds or ants after several days. I've done a lot of backups and restores of the family files, and thinking it might be residue in some other datafile, I uninstalled and reinstalled the program. I've seen weeds since so either I was wrong or it worked! I just wanted to make sure I had the most recent version.