I think it is the location of the files - opened through a networking port from the server - versus local file.
The Apple Discussions may get you a quicker answer. Possible kludge, open a blank local db file as well as the networked files.
thanks for the input... just tried that-> it only works if the local file is the active file, otherwise does not work. Unfortunately with the users I have this will not work... any other solutions would be appreciated