Ok guys, this is the situation:

User A sends a meeting request to user B. User B receives this
invitation and accepts, declines etc the request. However, User A does
not get a response saying that User B has accepted, declined the
meeting.

This is currently affecting all users at a 20 person office running
Exchange 2003 with Outlook 2003 SP2.

Any ideas???

I will personally kiss your feet if you can solve this for me