Title explains it...
If I join machines to "phoenix.domain.com", the windows 7 login screen displays "PHOENIX" under the login prompt when it is rebooted.
If I simply type a username into the prompt, as well as a password, it returns "invalid username or password".
If I type phoenix.domain.com\User.Name, and the password, it works fine. Once I'm logged in, any priv-escalation requests display domain: PHOENIX, and allow me to log in as would be ex