DSL service was down all weekend, due to a defective Cisco 678 router. I got a replacement promptly, but there was nobody at my ISP who knew how to configure it until today. Internet Navigator gets a major thumbs-down for their weekend response. If you stick your junior techs with weekend duty, you still need to have the the senior techs on call. I understand that everyone needs their weekend time off, but hey, 5 minutes on the phone would have saved me 2 days of downtime.