How to change Outlooks shared caleder titles?

Is Exchange Server being used?

And how is the user going about opening this shared calendar?

Exchange is being used yes, the normal calendars are being opened via 'open shared calendars' when the calendar menu item is opened. They can then tick/untick the users they want to view. Fairly standard I believe, the problem appears that one user is added as an additional mailbox so their calendar is seen by outlook as one of the listed 'My Calendars' which gives it the long title - unless it is unticked and re-ticked so it's frustrating for the end user. Would a screenshot be a better explanation?

A screen shot would may be most helpful.

Pic1 is the problem - when the user has their calendar added as a Shared Calendar as well as having the mailbox added so the calendar is then listed in 'My Calendars'  it won't show the user name by default, it displays the Calendar in Mailbox by default

Pic2 shows the user Richie Knight listed in both locations - People's Calendars and My Calendars because his mailbox is also open for the Outlook user

Pic3 shows the correct calender heading when the Richie Knight calender is un-ticked and the re-selected.

Hopefully a little clearer :)
Pic1.png
Pic2.png
Pic3.png

I see now.

This is happening because these additional Mailboxes have actually been added to your account.

If you go to Tools>Account Settings>More Settings>Advanced Tab
Look Under "Open these additional mailboxes"
You will find that the Calendars you are having issues with have been added here as an Additional Mailbox to Open.

If these Mailboxes are only here so you can access/view the calendar. Remove them.

However if they are here because you also need access to the Inbox, Contacts, Sent Items and so on& from your navigation pane, you will have to leave them.

To avoid this from happening Do Not open their Calendars under My Calendars.
Use only the Calendars under People's Calendars.

If you do not see a particular calendar listed Go to Calendar>Open a Shared Calendar>Type in the Name such as Administration, and the Calendar will open properly. It will also be added under People's Calendars for future use, so all you will have to do is place a check next to it to view it.

In the examples above, note that you have Richie Knight's Calendar Open Twice as you have a check next to it under "My Calendars" and "People's Calendars"

Hope This Helps!

*Correction

If you go to Tools>Account Settings> Double Click on Your Account
Once Open Click on More Settings>Advanced Tab
Look Under "Open these additional mailboxes"
You will find that the Calendars you are having issues with have been added here as an Additional Mailbox to Open.

This is unfortunately is the problem. We need the mailbox open so the user can view inbox so their calender will be seen in My Calendars. Even when we tick/untick the calendar in My Calendars it knows that it is also the one listed in shared users so ticks/select both automatically. Hence every time you come out of the calendar view and then back again it reverts to the longer title.

Possibly an oversight by MS?

I see what you mean!

Have been able to recreate the problem. But for me this only happnes quite randomly and cant get it to behave like this every time.

I can select the users Shared calendar seperate from their Calendar under "My Calendars"

But if I have multiple calendars open, and select this users Calendar under shared Calendar, every once in a while it places a check in both. Similar to if you have both selected and you removed the tick under "Peoples Calendars" it also removes the tick to the users Calendar under "My Calendars"

And the Calendar in "My Calendars" Seems to have priority over the Peoples Calendars

Might just check that SP1 is installed:
http://www.microsoft.com/downloads/details.aspx?familyid=9EC51594-992C-4165-A997-25DA01F388F5&displaylang=en


Then try removing both the Shared Calendar and the Additional Mailbox.

Afterwards Close Outlook and open it using
Start>Run>Outlook.exe /cleanprofile

Re-Add the Mailbox and Shared Calendar
Then try again.