Palm Zire 21 Handbook page 139

Turn on your handheld and tap the Favorite icon
3.
The first time you perform a HotSync operation, you must enter a
IMPORTANT
username in the New User dialog box and click OK. Every handheld should have
a unique name. To prevent loss of a user's records, never try to synchronize more
than one handheld to the same username.
The HotSync Progress dialog box appears and synchronization begins.
Wait for a message on your handheld indicating that the process is complete.
4.
After the HotSync process is complete, you can disconnect your handheld from
the cable.
Performing cable HotSync operations
.
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