I recently had Road Runner installed and I am using a Motorola Surfboard SB4100 cable modem. I have a wired PC and a wireless PC (both WinXP)connected to a Linksys WRT54G v6 router. I am trying to connect a (wired) PowerMac G4 (mirrored door, 867 MHz dual) running OS X 10.3.9 (also need OS...