Unable to add trusted location in Access 2007

I have a user right now, who, when he opens particular databases within Access 2007, recieves the message "Certain content in the database has been disabled", after which he can navigate to a cerain window and then enable the content.  I know that the method in which to avoid performing that step perpetually is to setup "trusted locatoins" on the network where access databases can reside.  However, when I attempt to go through the proper steps to add a trusted location within the local installation of Access, I receive the message "The remote or network path is not allowed by your current security settings".

Is this message a tell-tale sign that the network share in question was not configured to be trusted or is there something else on the desktop side that might have to be troubleshot?  I do not want to approach my network admins with this asking them to do extra work unless I have to, so I would like to verify the need to (or not to) get them involved.