I've networked a G4 desktop, an ibook, and an HP C4180 printer using an Airport Extreme. At first, I attached the printer directly to the desktop computer and shared it. That worked fine, but the desktop had to be always powered up in order to print from the laptop. I hooked the printer directly to the Airport Extreme and set it up again. Everything still works fine, but the desktop computer has to be turned on (like before) in order for the ibook to see the printer. So, I still can't print from the laptop without turning on the desktop. Does anyone know what I'm doing wrong? Thanks DM