Workstation Service not starting?

Hey folks -

We have a new win XP computer that we are trying to hook up to our domain.

We had a problem with shared drives not starting up. Eventually I figured
out that the Workstation service was not starting.

I can start it manually, but when we reset the machine, it doesn't start
automatically. It's set to start automatically.

Q: Why isn't it starting?

In the worst case scenario, can I make a command line shortcut for my user
on the desktop to start the service after they log on?