Yes, the One !
Join Date: Jan 2007
first, your sister is well advised NOT to sync two palms with two desktops (except if they are used in a 1-1 and 1-1 situation). otherwise, errors like the ones you are reporting are prone to happen.
second, the problem reported by hotsync should usually be solved with a "desktop overwrites handheld" operation (or the other way around). maybe uninstalling palm desktop helps, but since palm desktop only displays records stored within the data directory, i doubt that ths will eliminate the cause.
to transfer records from one palm to the other is not trivial. besides beaming the records in question, preferrably with a beaming tool that allows for beaming of a whole bunch of records (see palmgear for this), I´d use datebk6 and it´s history function for this (and else as well).