"iTunes could not sync calendars to the iPhone "ABC" because the iPhone disconnected"

Hi.
So, I have an iPhone 4 running iOS 4.3.5. I am syncing it using iTunes version 10.4.1 running on a MacBookPro running Mac OSX 10.7.1.
When I do a sync it runs through the usual steps, including the step where it says it is syncing calendars, and each step appears to complete in the iTunes window. However, as it finishes, a warning message appears saying "iTunes could not sync calendars to the iPhone "ABC" because the iPhone disconnected". Here's a screen grab of the error message:-
Now, the phone has not physically disconnected. I'm a bit baffled by this. It is a new iPhone 4, but inital syncs were performed without any difficulty. I have tried inserting a TEST event, to make sure that there is in fact a difficulty with the sync, and I can confirm that the error is not a phantom; syncs are not taking place. In additon, I have tried (albeit not methodically) to vary the particular calendars that are to sync, and the sync settings around old events, but to no avail.
Any suggestions for trouble shooting this would be gratefully received.
Thanks.

Seems a workaround solution is here: https://discussions.apple.com/message/9159203#9159203
This seems to solve the problem but we'll wait and see...

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