The purpose of this question is to find a simple solution as to how to use a shared external hard drive as a (mountable) time machine backup location. The setup is as follows: In the office I have my modem connected to a Linksys WRN160 wireless router. I have a PB G4 plugged into the router via ethernet, with a (shared) FW800 external HD plugged into the PB. The PB is set up as somewhat of a 'server' in the sense that it hosts the printing and shared storage, and operates closed 99% of the time. Floating around the house are three other apple laptops of the garden variety. I have the drive shared, and am able to access (will not mount on the desktop) it for purposes of a common data storage location, but have been unable to set the drive up as a mountable backup location. I have searched the interwebs and have one been able to come back with very complex solutions to this problem. It seems that it would be a very simple thing to accomplish. Any help is greatly appreciated!