Log in problem on windows network

I have windows 2000 server and windows 2000 professional network. i have configured active directoty and add computer and user into active directory user management section. But when i try to log in from second compoter it shows me error.
"The local policy of system does not permit u to logon interactively"

You'll need to edit the domain security policy. Find the User Rights Assignment under Local Policies. Check that your account or group appears in "Log on locally" and doesn't appear in "Deny logon locally".