User Profiles

The easist answer for you is going to go into user profiles and change your profile type to either set cache settings or make it a local type. At that point, when you're not around the environment to log into the NT domain, you would still enter your network password as if you were there to let you onto the desktop, although you would have no network connectivity. NT (or 2000 for that matter) is setup like this to facilitate slow network conenction and laptop users.

Good luck to you

Mark