I am the network administrator at a firm with 45 users. I am running Exchange 2003 with all service packs and patches applied. Workstations are running Office 2007, fully patched. We use a Blackberry Enterprise Server, version 22.214.171.124, but I don't have any evidence that this is related to the BlackBerry server.
Here is my problem: One of my users (of course, he's my boss--we'll call him USER A) created a calendar item in Outlook, and generated a meeting request to invite 5 other attendees. All of the attendees accepted, and the appointment shows up on everyone's calendar. A few days later, USER A opens his calendar and notices that the appointment is no longer showing up. Everything else on the calendar appears normal.
I look at the calendars of the other attendees, and the appointment still shows up on their calendars. I look in USER A's sent items so that I can examine the original request, and when I open the original meeting request on my computer (using USER A's Outlook profile), the appointment REAPPEARS on his calendar on my computer, with a status of "tentative". The appointment does NOT reappear on USER A's calendar at his desk.
When I open the "tentative" calendar item, it gives me the option to Accept the meeting request, which I do. After accepting the meeting request, the calendar items is restored to his calendar, both on my computer where I have Outlook open using USER A's profile and on USER A's computer.
I have reviewed the Exchange Server Application Event Log very thoroughly, and I can't find any reference to this calendar item, error or otherwise.
I am at a loss with regard to how to proceed--can the Experts help? I don't understand how an item can disappear from USER A's calendar, but remain on the calendars of the other attendees.