WinCVS doesn't allow diff

[saurabhmanohar]

Hi All,
I have created a repository on a cvs server and checked out the source
files on a few machines for developers to work. Now I want to commit
the changes. But when I try to compare the local and the repo file
using diff, winCVS gives me an authentication error for the user.
During the checkout and the commit, the user has changed his/her
windows domain password. And the user is added as a domain user. I am
using pserver protocol. The user who hasn'e changed the windows
password is able to get through easily. Is there a need to update the
user's password if the user is added as a domain user?
Thanks in Advance.

Saurabh Manohar