I have a CPU-Upgraded G4 Cube running Leopard. Up until today, I could access the Internet fine. Recently, I tried to poen a Web page, but it said I wasn't connected to the Internet. When I went to Network Preferences, SysPrefs crashed. Rinse and repeat, same story. I tried to enable AirPort, but nothing happens. I deleted /Library/Preferences/SystemConfiguration to no avail. What can I do short of reinstalling OSX? My CUbe has no DVD drive and I don't have a USB drive.