I have a user that synchs with a shared calendar. I have the blackberry to sync only the next 45 days. There are about 6500 entries in this calendar and when the blackberry is synching, it reaches about 2500 and then just stops. If I wipe-out the blackberry, it will sync all of the way through. Then, it will go back to not synching again. Does anyone have any idea what could cause this? Is there a number of entries limit? Or is it something else that may be causing this? Any ideas are appreciated.
Thanks

Could be a calendar attachment:

Errors syncing the BB with Desktop Manager - BlackBerryFAQ

Thanks, I will give that a try.