I've got a PC and MacBook Pro on the same network. With my old Powerbook, the shared folders on my PC would always be available for me to connect to in my Network Browser. However, something strange is happening now. Usually, my PC isn't even listed in the Network Browser. But sometimes it will appear and then disappear randomly. When it does appear and I try to connecto to it, I get the following error. Does anyone know what might be going on? Some settings I don't have configured right?