11-20-2010 04:59 PM
Problem started after I upgraded software on device. First sync after upgrade device wanted to remove all past clalendar items from Outlook. I reync and Outlook added many duplicates. If I delete the duplicates on the device, the next time I synch they are also deleted from Outlook. Fortunately, one copy of those deleted items still lives on the device in most cases. At this point, I can't do a 2-way sync without getting many duplicates. Any suggestions? Thanks.
11-20-2010 05:21 PM
Hi and welcome to the forums!
KB00111Duplicate Calendar entries occur on the BlackBerry smartphone after synchronizing with the BlackBerry Desktop Manager
Note: If you require further troubleshooting, see KB01451.