[missing-sync-palmos-talk] Treo 650 duplicate calendar items

[Bill Elkus]

I recently upgraded from a Treo 600 to a Treo 650; and ever since  
have been having duplicate calendar problems.

If I change or delete an appointment on the Palm Desktop calendar  
immediately after synching, then synch again, I get an error message  
saying that the same appointment was modified on both the handheld  
and the desktop, and both appointments were restored.

This is a terrible problem because if I don't catch it, I don't know  
which of the two appointments is the real one.

This happens 100% of the time.  Only way to stop it is having the  
desktop overwrite the handheld, but then the problem reoccurs as soon  
as the first appointment is changed or deleted on the desktop.  Thus,  
true synching (being able to make changes on both platforms) does not  
work because the old version of each appointment is not deleted.

I have verified that it is not a data corruption problem by  
reinstalling Palm Desktop, creating a new user at the Mac OS level  
(10.4.1), creating a new PalmUser with a blank calendar, hard  
resetting the Treo 650, creating a single calendar item on the  
desktop, synching to the Treo, then changing that one item and  
synching again.  The same error occurs.

I took my Treo and Powerbook to an Apple Genius bar guy who  
specializes in difficult Palm problems and he suggested that I  
purchase Missing Synch.  I did.  I get the identical behavior with  
respect to this problem as I did with the Palm synching application.

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At the risk of confusing the issue, I want to point out that I  
experienced a limited version of this behavior under the Treo 600 and  
a prior version of PalmDesktop.  It only occurred immediately after  
my secretary would synch my Treo 600.  Her PC settings were that my  
handheld would overwrite her PC, and we used my Treo as a convenient  
way of getting my calendar from my Mac to her PC each day.  Any  
changes I made to my desktop after she did a synch would appear as  
duplicates the next time I did a synch between my Mac and my Treo.   
However once I deleted the old version of the calendar item from my  
desktop and did a second synch, the errors stopped and would not  
start again until the next synch with a PC.  Thus I could avoid the  
problem altogether by synching to my Mac, giving her my Treo and  
having her synch to her PC, and then immediately synching again to my  
Mac even though no appointments had changed.

I highly doubt the Treo 650 duplicate items issue has anything to do  
with her PC because for the first week of my 600 to 650 changeover, I  
did not synch to her PC at all, and the duplicate items still  
happened all the time.