new with leopard is this shared tab on the sidebar, and every time I connect to my schools network, i see several computers on the side. I can browse other peoples files, and even copy them, however, i wouldn't like anyone doing this with my files, since a friend had problems with his mac the other day. He wanted to open word and someone else on the network was using it! After that he put the computer on screensaver, and wouldn't wake! he had to reinstall OSX to make it work. I don't know if this is related but it worries me that i can get some of my work or apps snatched. I don't really know how to block access to my files from other computers since leopard seems to automatically share the stuff between everyone, can someone shed some light to the subject.