Problem solved. It seems she had a power outage at the house, and once before I had told her to reboot everything (by removong and reconnecting some of the wires) if the internet did not work when the power came on. Well when she reconnected the wires, they got messed up. The one computer that did work, worked because it was wired directly to the modem instead of through the router. Anyway, after I hooked up the wires correctly, everything does work now. Thanks for the info and suggestions, Mike