I tacked onto the thread because I found out that I had the same issue but the resolution offered did not actually work for me. I thought it would be useful to have the same background information here so that someone reading it could understand what is going on. But I won't post onto a dead thread again next time if that is what you all prefer, I will post a link to the thread instead.
Anyway, I tried setting kristen's password to a blank one, but strangely, I can't do that! I can set it to a different password but not blank. If I tell it to set it to a blank one, it will use my old password instead. This problem is still not solved for me unfortunately.
The only way I know to set a blank password is to leave the "New password" and "Confirmation" fields blank:
But if I do so and click "OK," it does not actually change the password. Oh, and checking off "Don't ask for password on login" does not actually do what it claims to do -- you still have to enter the correct password when prompted.
How can I successfully create a blank password for a user, or make it so that a user does not need a password to log in?