I have only had to log in as root twice, and have not had any problems.
BTW. has anyone had problems logging in? Once, my password just did not work for my admin user (ie normal) account. This followed creating a new machine account for my girl, then loggin in and setting that up. Logged out, tried to log back in as me and .....
would not take my password.
I logged in as root, and created a new user for myself, but at next login, my password worked.