We recently had our Exchange Server upgraded (from 2003 to 2007) and we are seeing some quite strange behaviour in some people’s calendars. For example for two staff members who are sharing calendars they are seeing different views of each other’s calendars.
For example (User1 ) Suzanne created a meeting at 10:30 Filesite Training. Then subsequently she decided that (User 2) Branka should attend and updated the meeting. It now appeared in Branka’s diary but as you can see, was deleted from Suzanne’s.
We have seen other strange things like that happening also where somebody received a cancellation request for a meeting but the organiser had not sent it and other attendees did not and attended.