I have 3 Windows XP PCs and a wireless printer. My wife has an iMac. All the machines can access the internet wirelessly, and all can print to the wireless printer. But she cannot see any of the PCs from her iMac. She used to be able to, but not now. Does anyone know where to find simple and complete instructions for how to get the iMac to access the shared files on a PC? I can't remember what we did before to let her iMac see the PCs on the network.