We have also had an issue with trying to find any appointments in our resurrected server system (creating server from Import Calendar File) except for 1 category, which is a default (not custom) "Personal Category" is the only appt that would show up after client updates to the server. All appointments dissapear, even though the Category Sets perfectly defined in the server do show up in NUTD and are selected to view. What else can I do? Anybody have any thoughts? Thanks.