Do the people with delegates also receive their own meeting requests? Check out: http://office.microsoft.com/en-us/outlook-help/outlook-meeting-requests-essential-dos-and-donts-HA001127678.aspx
Specifically: *Keep meetings from vanishing* If you run Outlook on two computers and accept a meeting while using one of them, don't delete the meeting request from the Inbox on the other computer. If the request is still there, accept it again. Deleting a request on one computer after accepting it on another computer can cause the meeting to disappear from your calendar. I always translate this tidbit for my end-users as "only one person should be answering meeting requests". Multiple delegates, delegate and mailbox owner, and delegate and/or handheld (blackberry, winmobile) all BAD! On Wed, Jul 7, 2010 at 6:28 AM, Chyka, Robert <bch...@medaille.edu> wrote: > Hey everyone – We are running into a very strange issue here. Since last > Thursday most people with delegates added to their Outlook 2007 calendars > (Exchange 2003 Enterprise) have their calendar items disappear shortly after > putting them in. It is very strange and they disappear right in front of > the users eyes. > > > > We have checked the event viewer and can’t find anything. Has anyone run > into this issue before? > > > > Thanks! Bob >