How to Share files in my local Network My Snow Machines talk to each other. My Tiger machines too. This suggests that the router works, the various preferences are set, the cables are well connected. However Snow Machines and Tigers do not share anything and they are invisible to each other. No matter how I attempt to identify them on my Network. They just recognize the ones using the same System (SL see SL, Tiger see Tiger) I tried Airport, Ethernet When Tiger attempts to find a SL machine or viceversa I always get this answer: "The server may not exist or it is not operational at this time. Check the server name or IP address and try again." I don't understand this message. I can see the various machines operating at full power in my working space and the router blinking normally. Is it a bug or they are not meant to communicate? I've carefully identified the machines in every reasonable way, with names and IP numbers. Ne results. Any hints?