For some reason I've lost my Internet connection via ethernet on my Powerbook G4. I'm getting a local IP address from the router, but there's no connection to the Internet. Airport on the other hand works fine. I also have an iMac which is connected to the same router. It works fine, so I tried it's ethernet cable with my Powerbook. Still no go -so the cable isn't at fault. Next I tried connecting my Powerbook directly to my cable modem, bypassing the router. Nope, still doesn't work -so it's not the router at fault. This must mean the problem is with my Powerbook, but I have no idea where, how and why. I've already tried running Applejack and various jobs with Onyx, but that didn't change anything. The computer's a 1.67GHz Powerbook G4 running MacOS 10.4.11.