Booting into Admin account

Hi all,

I recently installed a WinXP Pro machine with a couple of accounts.

When I booted the machine, it logged into the admin account. Since the admin account did not have a password, I created one, and now when I boot, I get an error, thatthe machine can’t log in.

The question is, how do I get it to boot to the login prompt window, NOT directly into the Admin account.

thanks

Nate