Apple PowerBook G3 - Manual (Page 81)

A message says that an item can’t be shared.
m Make sure you have at least 1 MB of space available on your hard disk.
m Some removable storage devices can’t be shared. Check with the
manufacturer or vendor of the device for more information.
m Some disk-formatting programs don’t work with file sharing. If you use
such a program, check with the program’s manufacturer or vendor.
The file-sharing section doesn’t appear in the File Sharing control panel.
m You may have turned off AppleTalk or file sharing using the Extensions
Manager control panel or the Chooser. Turn them back on.
m If the file-sharing and network software is not in your System Folder, use the CD
that came with your computer to reinstall file-sharing and network software.
You can’t open a shared disk or folder.
m You may not have the access privileges needed to use the disk or folder. Ask
the network administrator or the owner of the shared item to give you access.
m Check with the owner of the item to make sure you are entering your name
exactly as specified by the owner (including spaces and capitalization) and
try again.
81 Tips and Troubleshooting