I have experienced the same problem in older versions of Outlook and MS
Exchange Server. I managed to resolve the problem by TURNING OFF the feature
"Delegate receives copies of meeting-related messages sent to me". You can
find this option as a checkbox in [Tools] - [Options] - [Delegates] -
[Permissions]

"Ian Campbell" wrote:

More information:

I logged on to a different machine as one of the problematic users and was
still seeing this problem, hence it's got to be related to his mailbox or
the server in some way and not that particular copy of Outlook...

"Ian Campbell" wrote in message
...
Hi there,

We have some users who receive meeting requests in their inboxes, but the
meeting does not show on their calendars until they actually open the
request. Actually, I shouldn't say that, because it will eventually
appear; it just takes a long time. For other users, the meeting appears
instantly in the calendar when the request shows up in the mailbox.

The 'Process requests and responses on arrival' box has been checked in
Tools|options|preferences|Email Options|Tracking Options, but it does not
seem to be working as intended.

This is Outlook 2003 on WinXP running against Exchange 2000.

Any idea why that might be so? Thanks for the help,

Ian