Thanks for the reply. I use Microsoft Outlook and it's important that I stick with this one. I have done some reading and it appears that with OS 4.5 that it creates a calendar for each e-mail address that the user has. I have a folder for default calendar, one for Cogeco and one for my Rogers blackberry address. If my Blackberry is set to "show all calendars" then I can see everything in one, but if I pick an individual calendar I can only see bits and pieces. Therefore it would make sense to leave it on "see all calendars" but when I try to sync it to DM it wants to delete the calendar with over 200 entries and keep the one with 6 on it. Is there a way to sync everything?