diff --git a/patches/lms-video.pd b/patches/lms-video.pd
index 3e03c9b..dd65eb5 100644
--- a/patches/lms-video.pd
+++ b/patches/lms-video.pd
@@ -1,4 +1,4 @@
-#N canvas 574 186 611 318 10;
+#N canvas 572 196 611 318 10;
 #N canvas 315 169 952 599 dmx 0;
 #X obj -7 437 list split;
 #X obj 99 444 list split;
@@ -136,7 +136,7 @@
 #X connect 5 0 7 0;
 #X connect 7 0 4 3;
 #X restore -309 -438 pd fondo;
-#N canvas 73 329 1092 358 receive 0;
+#N canvas 69 349 1134 358 receive 0;
 #X obj 22 -242 s winposx;
 #X obj 90 -242 s winposy;
 #X obj 158 -242 s winsizex;
@@ -165,12 +165,14 @@
 #X obj 847 -239 s ola;
 #X obj 898 -263 float;
 #X obj 898 -239 s universe;
-#X obj 615 -432 s path;
+#X obj 950 -432 s path;
 #X obj -39 -265 float;
-#X obj 452 -449 unpack f f s;
-#X obj 452 -477 netreceive 9195;
+#X obj 787 -449 unpack f f s;
+#X obj 787 -477 netreceive 9195;
 #X obj -39 -242 s window;
-#X obj -39 -408 select 1 2 3 4 5 11 12 13 14 15 16 17 18 20 21;
+#X obj -39 -408 select 1 2 3 4 5 11 12 13 14 15 16 17 18 20 21 22;
+#X obj 986 -264 float;
+#X obj 986 -242 s previewswitch;
 #X connect 4 0 0 0;
 #X connect 5 0 1 0;
 #X connect 6 0 2 0;
@@ -202,6 +204,7 @@
 #X connect 30 1 24 1;
 #X connect 30 1 26 1;
 #X connect 30 1 29 1;
+#X connect 30 1 34 1;
 #X connect 30 2 28 0;
 #X connect 31 0 30 0;
 #X connect 33 0 29 0;
@@ -219,6 +222,8 @@
 #X connect 33 12 20 0;
 #X connect 33 13 24 0;
 #X connect 33 14 26 0;
+#X connect 33 15 34 0;
+#X connect 34 0 35 0;
 #X restore -249 -438 pd receive;
 #N canvas 687 175 450 564 window 0;
 #X msg 987 -347 color 0 0 0;
@@ -354,7 +359,7 @@
 #X connect 16 1 3 0;
 #X restore -176 -379 pd layer_5;
 #X obj -298 -336 loadbang;
-#X obj -407 -259 print togui;
+#X obj -127 -266 print togui;
 #N canvas 803 211 450 300 layer_6 0;
 #X msg -124 -32 1;
 #X msg -177 -33 0;
@@ -595,7 +600,7 @@
 #X connect 16 0 13 0;
 #X connect 16 1 3 0;
 #X restore -396 -379 pd layer_2;
-#N canvas 384 140 450 300 layer_1 0;
+#N canvas 382 150 450 300 layer_1 0;
 #X obj -253 -28 layer;
 #X msg -124 -32 1;
 #X msg -177 -33 0;
@@ -635,13 +640,14 @@
 #X restore -469 -379 pd layer_1;
 #X obj -298 -271 metro 1000;
 #X obj -298 -237 s metro;
-#X msg -298 -299 1;
-#X obj -364 -297 r textgui;
+#X msg -298 -305 1;
+#X obj -84 -304 r textgui;
 #X obj -476 -294 r preview;
-#X msg -407 -294 0;
+#X msg -127 -301 0;
 #X obj -476 -236 pix2jpg;
 #X text -384 -470 (c) 2012-2013 Santi Noreña libremediaserver@gmail.com
 GPL License;
+#X obj -418 -336 r previewswitch;
 #X connect 5 0 16 0;
 #X connect 5 0 19 0;
 #X connect 14 0 15 0;
@@ -649,4 +655,5 @@ GPL License;
 #X connect 17 0 6 0;
 #X connect 18 0 20 0;
 #X connect 19 0 6 0;
+#X connect 22 0 14 0;
 #X coords 0 0 1 1 85 60 0;
diff --git a/src/libremediaserver.cpp b/src/libremediaserver.cpp
index 0f9ae81..7f4c12f 100644
--- a/src/libremediaserver.cpp
+++ b/src/libremediaserver.cpp
@@ -1588,6 +1588,39 @@ void libreMediaServer::sendFrame()
     m_msex->n_timer->start();
 }
 
+// Enable/Disable the GUI Master preview
+void libreMediaServer::on_previewMaster_stateChanged (int state)
+{
+    if ((state == 0)) {
+        m_preview->stop();
+    }
+    if ((state == 2))
+    {
+        m_preview->start();
+    }
+}
+
+// Enable/Disable the GUI Layers preview
+void libreMediaServer::on_previewLayer_stateChanged (int state)
+{
+    if ((state == 0)) {
+        QString desc = tr("0022 0;");
+        if (!sendPacket(desc.toAscii().constData(),desc.size()))
+        {
+            errorsending();
+        }
+       }
+    if ((state == 2))
+    {
+        QString desc = tr("0022 1;");
+        if (!sendPacket(desc.toAscii().constData(),desc.size()))
+        {
+            errorsending();
+        }
+    }
+}
+
+
 ///////////////////////////////////////////////////////////////////
 //
 // Terminal and Log
@@ -1604,7 +1637,7 @@ void libreMediaServer::stdout_audio() {
     }
 }
 
-// Sacamos la salida de Pure Data Video en la terminal
+// Sacamos la salida de Pure Data Video en la terminal. Filtra mensajes para el GUI.
 void libreMediaServer::stdout() {
     QByteArray out = m_pd_video->readAllStandardError();
     if (out.size() < 7) {return;}
diff --git a/src/libremediaserver.h b/src/libremediaserver.h
index 78bf769..668f328 100644
--- a/src/libremediaserver.h
+++ b/src/libremediaserver.h
@@ -123,6 +123,8 @@ private slots:
     void pdrestart();
     void stdout();
     void on_video_stateChanged(int state);
+    void on_previewMaster_stateChanged(int state);
+    void on_previewLayer_stateChanged(int state);
     //Audio
     void newPeer_audio();
     void newmessage_audio();
diff --git a/src/libremediaserver.pro.user b/src/libremediaserver.pro.user
index b5ab411..4df8f3a 100644
--- a/src/libremediaserver.pro.user
+++ b/src/libremediaserver.pro.user
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by Qt Creator 2.5.0, 2013-03-01T16:14:51. -->
+<!-- Written by Qt Creator 2.5.0, 2013-03-01T18:09:52. -->
 <qtcreator>
  <data>
   <variable>ProjectExplorer.Project.ActiveTarget</variable>
diff --git a/src/libremediaserver.ui b/src/libremediaserver.ui
index 051687b..294bf81 100644
--- a/src/libremediaserver.ui
+++ b/src/libremediaserver.ui
@@ -91,7 +91,7 @@
      <widget class="QSpinBox" name="ipAddress2">
       <property name="geometry">
        <rect>
-        <x>570</x>
+        <x>520</x>
         <y>170</y>
         <width>31</width>
         <height>27</height>
@@ -107,7 +107,7 @@
      <widget class="QSpinBox" name="ipAddress4">
       <property name="geometry">
        <rect>
-        <x>650</x>
+        <x>600</x>
         <y>170</y>
         <width>31</width>
         <height>27</height>
@@ -384,7 +384,7 @@
       <property name="geometry">
        <rect>
         <x>480</x>
-        <y>150</y>
+        <y>200</y>
         <width>241</width>
         <height>21</height>
        </rect>
@@ -396,7 +396,7 @@
      <widget class="QSpinBox" name="ipAddress3">
       <property name="geometry">
        <rect>
-        <x>610</x>
+        <x>560</x>
         <y>170</y>
         <width>31</width>
         <height>27</height>
@@ -438,7 +438,7 @@
      <widget class="QSpinBox" name="ipAddress1">
       <property name="geometry">
        <rect>
-        <x>530</x>
+        <x>480</x>
         <y>170</y>
         <width>31</width>
         <height>27</height>
@@ -651,6 +651,41 @@
        <bool>true</bool>
       </property>
      </widget>
+     <widget class="QCheckBox" name="previewLayer">
+      <property name="geometry">
+       <rect>
+        <x>480</x>
+        <y>240</y>
+        <width>131</width>
+        <height>26</height>
+       </rect>
+      </property>
+      <property name="text">
+       <string>Preview Layers</string>
+      </property>
+      <property name="checked">
+       <bool>true</bool>
+      </property>
+     </widget>
+     <widget class="QCheckBox" name="previewMaster">
+      <property name="geometry">
+       <rect>
+        <x>480</x>
+        <y>270</y>
+        <width>141</width>
+        <height>26</height>
+       </rect>
+      </property>
+      <property name="text">
+       <string>Preview Master</string>
+      </property>
+      <property name="checked">
+       <bool>true</bool>
+      </property>
+      <property name="autoRepeat">
+       <bool>false</bool>
+      </property>
+     </widget>
      <zorder>layer7Check</zorder>
      <zorder>layer5Check</zorder>
      <zorder>layer3Check</zorder>
@@ -692,6 +727,8 @@
      <zorder>layer7Preview</zorder>
      <zorder>layer8Preview</zorder>
      <zorder>masterPreview</zorder>
+     <zorder>previewLayer</zorder>
+     <zorder>previewMaster</zorder>
     </widget>
     <widget class="QWidget" name="Audio">
      <attribute name="title">
@@ -1112,7 +1149,7 @@ This program comes with ABSOLUTELY NO WARRANTY</string>
      <x>0</x>
      <y>0</y>
      <width>745</width>
-     <height>25</height>
+     <height>29</height>
     </rect>
    </property>
    <widget class="QMenu" name="menuFile">
diff --git a/todo.txt b/todo.txt
index e495fc2..bbb91d7 100644
--- a/todo.txt
+++ b/todo.txt
@@ -18,6 +18,10 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 *******************************************************************************
+v 0.03:
++ Pure Data: Carpetas para imágenes 
++ Text: Diferentes ficheros de texto
+
 
 Próximas versiones:
 
@@ -32,8 +36,6 @@ Próximas versiones:
 - GUI: Configuración para anular los previews y salvar tiempo de proceso
 - Conectividad: CITP/MSEx 1.1. Thumbs y previews de imágenes 
     --> Esperar a 1.2 en MagicQ?
-+ Pure Data: Carpetas para imágenes 
-+ Text: Diferentes ficheros de texto
 - Pure Data: sincronismo de audio con videos 
     --> Parece que hay que hacer un script para separar el audio del video, y luego ejecutarlos juntos. Un poco chapu, la verdad. La aternativa es volver a pdp mediante pdp2gem (inviable, demasiado proceso) 
     --> De momento separando el .ogg del video, ejecutando en auto, y mandando play a la vez debería de estar sincronizados. Ahora mismo se podría separando el audio en un fichero .ogg y presionando el play a la vez en modo auto
@@ -60,6 +62,8 @@ Próximas versiones:
     --> Depurar a saco las condiciones del reinicio 
 - Scripts: script para formatear archivos de texto  
 - GUI: avisar cuando no se pueda leer un archivo de texto
+- Audio: Mute check box.
+
 -----------------
 
 Para considerar: