I'm a novice computer user. I have recently purchased a new computer, and I'm having a great deal of trouble with my internet connection. I have a cable modem, and I keep getting the message "cannot locate server" sporadically. Sometimes it lets me on, and sometimes not. I have spent hours on the phone with my ISP, have downloaded new drivers for my realtek rtl8139 pci/nic. used the "repair" tool, and disabled the firewall in XP. Still, it lets me connect sometimes, and other times, "cannot find server". It's not my Cable modem either, I've checked it. Help!! This is maddening!!