Duplicate Entries in Calendar, Contacts, Bookmarks after Sync

After an update to IOS 4 and mobile me, duplications began occuring between devices (iPad, iPhone, computer, me.com) Please note that the new software version update requires a minimum of Windows XP SP3 if you are performing sync to a PC. I was running XP SP2 at the time. Updating to SP3 resolved these issues and all duplicate entries disappeared after update. I thought it would be helpful for people running XP SP2 to know this, since it is an easy fix.