Outlook 03′ Activities Tap-Show All Problem

We have recently set up a network with Outlook 03′ and MS Ex. 03′ an the problem is that whenever one of the employees try to view the activities of one of their contacts nothing populates in the show all field. To see any thing they have to manually go down to say the Show-Journal field to actually see any journal entries. I have already tried adjusting the folder options under properties on contacts but that didn’t help. This is only a problem for out customers too, whenever I go in to view activities it works just fine for me….