I just set my parents up on my old G4 tower. They have a cable modem that has been working without problems on their PC. Now, on the mac, every time they go to use the system (like after a day's time) the internet connection is gone. I recommended that they go in and renew the DHCP lease, which solves the problem, but this isn't a permanent fix. Unfortunately this area of macs is not my specialty. They shouldn't have to renew their DCHP lease every time they want to use their computer. Any ideas what the problem is?