My father has a printer connected to a router in which I get wireless internet on my MacBook from. He enabled "Share Printer" on his PC, and I went into my Preferences to add the printer. When I click the "+" in my preferences, there is no printer to select. How can I share this printer between my MacBook and his PC? Thanks PS - I searched this subject and found a thread pertaining to this subject, but I need a more detailed explanation.