Selecting "login window" from the FUS menu. Other users no longer show up in this menu, as they did under tiger. If "display login window as" is set to "list of users", only the first user account I am logged in as is an option, I must set it to name and password.
I've tried adding new accounts, they don't show up in the menu, either.
So far the one time I tried rebooting with two users logged in resulted in a hang, as well.