I'm supporting a small office. They're running Server 2003, with Office 2003 at each workstation. A domain was set up, and sharing implemented so that the handful of employees can look at the same pool of contacts and calendar information.
(I didn't set this up, nor was I given clear documentation as to how this was all set up)
A typical user here has their local contacts, and another user's contacts, (the shared contacts) in the folder list.
When they write an email, they can draw from their local contacts, but not the shared ones (although they can list them and edit them).
I have no idea how to either make the shared contacts available when they're writing an email, or at least automatically synch the folders, as a possible compromise.