Ok, this one is driving me crazy. I have about 10 different calendars in outlook for various reasons. I want all 10 available but I don't want them all to show up every time I open Outlook. Hiding the group works while Outlook is open but as soon as I close and reopen. Every stinking calendar is displayed again. Also colors don't seem to stay consistent all the time. I will color a calendar yellow for example and when it reopens its purple. Outlook 2010, exchange 2010.