Palm Treo 700p User Manual page 339

If you're trying to synchronize offline, be sure to set your Outlook
Calendar, Contacts, Notes, and Tasks to be available offline.
Tip:
I Have Duplicate Entries in Microsoft Outlook After I Synchronize
1.
Open Microsoft Outlook and delete the duplicate entries.
2.
On your computer, go to the application with duplicate entries and
manually enter any information you've added to your device since the last
time you synchronized.
3.
Click the HotSync manager icon
4.
Select an application that has duplicate entries that also has Outlook in its
name.
5.
Click Change.
6.
Select Desktop overwrites handheld, and then click OK.
7.
If more than one application has duplicate entries, then repeat steps 4
through 6 for each application with duplicates.
8.
Click Done.
9.
Synchronize your device and your computer.
Section 7A: Help
For more information on Outlook conduits, click the HotSync manager
icon in the taskbar, select Custom, select an application with Outlook in
its name, and then select Help.
in the taskbar, and select Custom.
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