diff --git a/glade/main-window.glade b/glade/main-window.glade
index 5e1768f..3f150f3 100644
--- a/glade/main-window.glade
+++ b/glade/main-window.glade
@@ -2,6 +2,8 @@
 <!DOCTYPE glade-interface SYSTEM "glade-2.0.dtd">
 <glade-interface>
   <widget class="GtkWindow" id="MainWindow">
+    <property name="width_request">300</property>
+    <property name="height_request">200</property>
     <child>
       <widget class="GtkVBox" id="MainBox">
         <property name="visible">True</property>
@@ -9,7 +11,7 @@
           <widget class="GtkMenuBar" id="MenuBar">
             <property name="visible">True</property>
             <child>
-              <widget class="GtkMenuItem" id="MenuBar.File">
+              <widget class="GtkMenuItem" id="MenuItem.File">
                 <property name="visible">True</property>
                 <property name="label">_File</property>
                 <property name="use_underline">True</property>
@@ -17,7 +19,7 @@
                   <widget class="GtkMenu" id="Menu.File">
                     <property name="visible">True</property>
                     <child>
-                      <widget class="GtkImageMenuItem" id="Menu.File.Quit">
+                      <widget class="GtkImageMenuItem" id="MenuItem.File.Quit">
                         <property name="visible">True</property>
                         <property name="label">gtk-quit</property>
                         <property name="use_underline">True</property>
@@ -29,15 +31,15 @@
               </widget>
             </child>
             <child>
-              <widget class="GtkMenuItem" id="MenuBar.Help">
+              <widget class="GtkMenuItem" id="MenuItem.Help">
                 <property name="visible">True</property>
                 <property name="label">_Help</property>
                 <property name="use_underline">True</property>
                 <child>
-                  <widget class="GtkMenu" id="MenuBar.File.Help">
+                  <widget class="GtkMenu" id="Menu.Help">
                     <property name="visible">True</property>
                     <child>
-                      <widget class="GtkImageMenuItem" id="imagemenuitem2">
+                      <widget class="GtkImageMenuItem" id="MenuItem.Help.About">
                         <property name="visible">True</property>
                         <property name="label">gtk-about</property>
                         <property name="use_underline">True</property>
@@ -73,6 +75,27 @@
                 <property name="visible">True</property>
               </widget>
             </child>
+            <child>
+              <widget class="GtkToolButton" id="ToolBar.Play">
+                <property name="visible">True</property>
+                <property name="sensitive">False</property>
+                <property name="stock_id">gtk-media-play</property>
+              </widget>
+            </child>
+            <child>
+              <widget class="GtkToolButton" id="ToolBar.Pause">
+                <property name="visible">True</property>
+                <property name="sensitive">False</property>
+                <property name="stock_id">gtk-media-pause</property>
+              </widget>
+            </child>
+            <child>
+              <widget class="GtkToolButton" id="ToolBar.Stop">
+                <property name="visible">True</property>
+                <property name="sensitive">False</property>
+                <property name="stock_id">gtk-media-stop</property>
+              </widget>
+            </child>
           </widget>
           <packing>
             <property name="expand">False</property>
@@ -95,4 +118,42 @@
       </widget>
     </child>
   </widget>
+  <widget class="GtkAboutDialog" id="AboutDialog">
+    <property name="title">SGPEMv2</property>
+    <property name="version">0.3</property>
+    <property name="copyright">University of Padova, dept. of Pure and Applied Mathematics</property>
+    <property name="license">SGPEMv2 comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it under the terms of the GNU General Public License; for details see file COPYING contained in the source package.</property>
+    <property name="authors">Giovanni Giacobbi &lt;ggiacobb@studenti.math.unipd.it&gt;
+Filippo Paparella &lt;ironpipp@gmail.com&gt;
+Paolo Santi       &lt;psanti@studenti.math.unipd.it&gt;
+Matteo Settenvini &lt;matteo@member.fsf.org&gt;
+Marco Trevisan    &lt;mtrevisa@studenti.math.unipd.it&gt;
+Djina Verbanac    &lt;betalgez@yahoo.com&gt;
+Luca Vezzaro      &lt;lvezzaro@studenti.math.unipd.it&gt;</property>
+    <property name="documenters"></property>
+    <property name="wrap_license">True</property>
+    <child internal-child="vbox">
+      <widget class="GtkVBox" id="dialog-vbox1">
+        <property name="visible">True</property>
+        <property name="events">GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_ENTER_NOTIFY_MASK</property>
+        <property name="border_width">12</property>
+        <property name="spacing">12</property>
+        <child>
+          <placeholder/>
+        </child>
+        <child internal-child="action_area">
+          <widget class="GtkHButtonBox" id="dialog-action_area1">
+            <property name="visible">True</property>
+            <property name="events">GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_ENTER_NOTIFY_MASK</property>
+            <property name="spacing">6</property>
+            <property name="layout_style">GTK_BUTTONBOX_END</property>
+          </widget>
+          <packing>
+            <property name="expand">False</property>
+            <property name="pack_type">GTK_PACK_END</property>
+          </packing>
+        </child>
+      </widget>
+    </child>
+  </widget>
 </glade-interface>
diff --git a/src/start_gui.cc b/src/start_gui.cc
index d5f7a47..9f9fb8d 100644
--- a/src/start_gui.cc
+++ b/src/start_gui.cc
@@ -24,6 +24,8 @@
 #include "start_gui.hh"
 
 #include <libglademm/xml.h>
+#include <glibmm/ustring.h>
+#include <gtkmm/aboutdialog.h>
 #include <gtkmm/main.h>
 #include <gtkmm/menuitem.h>
 #include <gtkmm/window.h>
@@ -49,9 +51,16 @@ start_gui(int argc, char** argv)
 	// here -- ugly -- derive widgets and then use
 	// Glade::Xml::get_widget_derived -- better --)
 	MenuItem* file_quit = NULL;
-	refXml->get_widget("Menu.File.Quit", file_quit);
+	refXml->get_widget("MenuItem.File.Quit", file_quit);
 	file_quit->signal_activate().connect(sigc::ptr_fun(&Main::quit));
 
+	// About dialog
+	MenuItem* help_about = NULL;
+	refXml->get_widget("MenuItem.Help.About", help_about);
+	AboutDialog* about_dialog = NULL;
+	refXml->get_widget("AboutDialog", about_dialog);
+	help_about->signal_activate().connect(sigc::mem_fun(*about_dialog, &Window::show));
+
 	main_window->show_all_children();
   
   Main::run(*main_window);