I just upgraded from BB 9700 Bold to 9930 Bold. Never had any problems with Outlook 2010 sync on 9700. Now everytime I sync the 9930, it wants to either change or add a very large number of calendar or task entries. Doesn't seem to be a problem with contacts. I've changed task sync to one-way (device to computer) and that helps, but that's not the way my business works. And the problems with calendar continue. I'm running the OS 7.0, and my desktop with Outlook 2010 is running Windows 7 Home Premium. I'm tempted to downgrade to OS 6 on the 9930. Any ideas?