Hi,
i think i have the same problem,
in my case i want to upgrade a Notes User from a normal to a roaming user.
Before i can enable the roaming i have to copy the personal address book to the notes server: /roaming/xxuserxx/names.nsf
when i set the path in BES from the users mail file /mail/xxuserxx.nsf where i get the contacts from ($Contacts) to the new location i get a second desktop on the BB.
I tried to:
clear the ($Contacts) and synced the empty address book with the BB,
then delete the service book, disable the sync in BES .. wait.. enable sync in BES with the new path.. but i still get 2 Desktop's ..