Problem with automatic login

Hi! I've enabled automatic login in my image like this: /usr/bin/defaults write $3/Library/Preferences/com.apple.loginwindow autoLoginUser "user" And a proper kcpassword file has been placed under /etc. This does not seem to work properly, upon first boot the loginwindow will select the user for login, but the password isn't entered. If I reboot the machine it works fine, but why doesn't it work the first time? What's really strange is that after some trial and error changing some scripts, I managed to make an image that works fine. Problem is, I can't seem to find out what I changed that made it work, and now I can't reproduce a working image again.... Please help :)