Thank you for reply

I did what u said but I still can't dial up to internet at home. The system showed me "691"error which is

Either your user account is not registered with the domain listed, your password is expired, or you mistyped the information. If you do not specify a domain, the remote access server attempts to verify your user name and password on the domain of which it is a member.
Carefully retype your user name, password, and domain. If you are unsure of this information, contact your system administrator.

I guess 2K system mixed network with dial-up-to internet. I don't know which domain it want me to type.

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