Unknown user error?

[Steven Buroff]

Hi. I'm a new CVS user. I'm running the binary release 1.11.2 on a
Win 2K system. When I try to do a commit, I get the following error:

        >cvs commit -R dump
        cvs [commit aborted]: your apparent username (sjb) is unknown to
                this system

However, "sjb" is my correct username; i.e., the name I am logged in
as.
Can anyone tell me how to tell CVS that the name is OK? Thanks.

Steve Buroff