I control several conference rooms.  I organize all conference rooms
scheduled for technical support using one calendar.  I had six appointments
in the calendar that overlaped the same hours during the day.  I attempted to
add another conference room appointment during the same times slot with these
other six appointments.  I could create the appointment and save a test
appointment but the appointment would disappear once I changed the time to
occur during the time of the other six appointments.

Is this a limit within Outlook or is there a place to change the limit?