[ms office - 2010] How to get shared calendar showing only in Outlook 2010?

[cttech]

I have a user who manages a calendar which is a shared calendar. When we were using Office 2007 they were able to close Outlook 2007 with only the shared calendar ticked in calendars and then open it and still only be showing the shared calendar as tick. But now in Office 2010 when they close Outlook 2010 then open it again it resets and has both there calendar and the shared calendar showing as tick. Does anyone know how to change this?