[imp] Setup Interface

[Rodrigo Abantes Antunes]

Hi, I just installed Horde 4 and IMP 5, but it asks for login and  
password and I can't access the setup interface to configure an  
authentication driver. In the documentation says this: Completing  
Configuration - You can now access Horde without a password, and you  
will be logged in as an administrator. I thought the first time it  
shouldn't ask for login for we to setup the configs, at least was this  
way the other times I installed Horde.