Turned computer off, came back a day later...no internet. ISP tech support tried to get IP address from CMD prompt, but nothing worked. Tried various DOS commands, including IPCONFIG HELP and DIR. Only DIR returned a valid response; everything else returned "Command is not recognized as an internal or external command, operable program or batch file". ISP tech support unable to help because they said problem was computer related, nothing to do with ISP. Any ideas as to what happened? or what to do to make IPCONFIG respond so I can have internet service again? I am running Win 2000 latest SP AMD athlon 2200XP w/ 512RAM Thx....Bill