authentication failed root

To: "debian-user-spanish@lists.debian.org" <debian-user-spanish@lists.debian.org>
Subject: authentication failed root
From: fernando preciado montenegro <ferchopreciado@yahoo.com>
Date: Thu, 21 Apr 2016 07:28:59 +0000 (UTC)
Message-id: <[🔎] 476694632.4630055.1461223739469.JavaMail.yahoo@mail.yahoo.com>
Reply-to: fernando preciado montenegro <ferchopreciado@yahoo.com>
References: <476694632.4630055.1461223739469.JavaMail.yahoo.ref@mail.yahoo.com>

hello good day

please help me

I had a problem, authentication failed root, but only interface grafic becouse in the TERMINAL working good.

what is the problem,

thank you

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Follow-Ups:
- Re: authentication failed root
  - From: fernando sainz <fernandojose.sainz@gmail.com>
- Re: authentication failed root
  - From: Gonzalo Rivero <fishfromsalta@gmail.com>