dont think it can be done mate. i had to reinstall mine when batt went flat the other month .dont know if its just a ipaq 3970 problem? (anyone know otherwise) why the fook it warns you off possible data loss when batt is running low anyway is beyond me, you would think no data would be lost. its no big deal just to reinstall just a ballache if you use it occasionally like me to switch it on and the mother f~~~~~n set up screen is there on windows Grrrrrrrrrrrrrrrrrrrrrrrr
well i killed my pda last week, i found out it does not like to drink the real thing? ie Co-e lol
but i had it on mem card and all i did was take the mem card out then but it back in and it reloads if my battery was flat
all you need to do is copy the tomtom dir across to the sd card, as a backup.
or
do a pda backup with activesync then you dont need to reinstall, just restore the BU