You can ask PAF to keep a log of all changed records. To do this select Tools menu > Preferences > File > Log Changes > OK
Unfortunately the log tells very little beyond the date and time and the RIN: 7-29-2007 21:21 Mod Nts 6354 [modified Notes] 7-29-2007 21:30 Lnk Ch6354 [linked to child] 7-29-2007 21:30 Mod Ind 6354 [modified Individual info]
You can view the log or empty it from the menu above.
If that would meet your needs, the problem is easily solved.