You know, I've had some problems with this recently sharing files between my iMac (Tiger) and MacBook (Leopard). Before, they connected no problem, but ever since I installed Leopard on the MacBook, when I try to connect to the iMac I'm told that it is "Not available." It's weird, because when I use the connect to server option and put in my iMac IP, it does work.... some times. Any idea which setting is wrong on which computer?