diff --git a/SWADroid/AndroidManifest.xml b/SWADroid/AndroidManifest.xml
index c2c0d328..9b45cf81 100644
--- a/SWADroid/AndroidManifest.xml
+++ b/SWADroid/AndroidManifest.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="es.ugr.swad.swadroid"
-      android:installLocation="auto" android:versionName="0.3.3" android:versionCode="9">
+      android:installLocation="auto" android:versionCode="9" android:versionName="0.3.3">
     <application android:label="@string/app_name" android:icon="@drawable/ic_launcher_swadroid" android:debuggable="true">
          <activity android:name=".SWADMain"
                    android:label="@string/app_name"
diff --git a/SWADroid/gen/es/ugr/swad/swadroid/R.java b/SWADroid/gen/es/ugr/swad/swadroid/R.java
index 72551321..ba678ec8 100644
--- a/SWADroid/gen/es/ugr/swad/swadroid/R.java
+++ b/SWADroid/gen/es/ugr/swad/swadroid/R.java
@@ -21,8 +21,9 @@ public final class R {
         public static final int ic_launcher_swadroid=0x7f020004;
         public static final int note=0x7f020005;
         public static final int notif=0x7f020006;
-        public static final int recmsg=0x7f020007;
-        public static final int test=0x7f020008;
+        public static final int notif36x36=0x7f020007;
+        public static final int recmsg=0x7f020008;
+        public static final int test=0x7f020009;
     }
     public static final class id {
         public static final int eventDate=0x7f080004;
@@ -54,10 +55,13 @@ public final class R {
         public static final int coursesProgressDescription=0x7f060018;
         public static final int coursesProgressTitle=0x7f060017;
         public static final int dateMsg=0x7f060028;
+        public static final int errorConnectionMsg=0x7f06002e;
         public static final int errorCopyMsg_DB=0x7f06001b;
         public static final int errorMsgLaunchingActivity=0x7f060019;
         public static final int errorMsgNoConnection=0x7f06001c;
         public static final int errorMsgWorkaroundEmulator=0x7f06001a;
+        public static final int errorServerResponseMsg=0x7f06002d;
+        public static final int errorTimeoutMsg=0x7f06002f;
         public static final int examAnnouncement=0x7f060021;
         public static final int firstRunMsg=0x7f06002b;
         public static final int forumReply=0x7f060025;
diff --git a/SWADroid/res/drawable-hdpi/announce.png b/SWADroid/res/drawable-hdpi/announce.png
new file mode 100644
index 00000000..a3b58846
Binary files /dev/null and b/SWADroid/res/drawable-hdpi/announce.png differ
diff --git a/SWADroid/res/drawable-hdpi/forum.png b/SWADroid/res/drawable-hdpi/forum.png
new file mode 100644
index 00000000..c9ee0a3a
Binary files /dev/null and b/SWADroid/res/drawable-hdpi/forum.png differ
diff --git a/SWADroid/res/drawable-hdpi/grades.png b/SWADroid/res/drawable-hdpi/grades.png
new file mode 100644
index 00000000..fd7f7725
Binary files /dev/null and b/SWADroid/res/drawable-hdpi/grades.png differ
diff --git a/SWADroid/res/drawable-hdpi/note.png b/SWADroid/res/drawable-hdpi/note.png
new file mode 100644
index 00000000..12804b30
Binary files /dev/null and b/SWADroid/res/drawable-hdpi/note.png differ
diff --git a/SWADroid/res/drawable-hdpi/notif.png b/SWADroid/res/drawable-hdpi/notif.png
new file mode 100644
index 00000000..7f0095f0
Binary files /dev/null and b/SWADroid/res/drawable-hdpi/notif.png differ
diff --git a/SWADroid/res/drawable-hdpi/recmsg.png b/SWADroid/res/drawable-hdpi/recmsg.png
new file mode 100644
index 00000000..645fecf3
Binary files /dev/null and b/SWADroid/res/drawable-hdpi/recmsg.png differ
diff --git a/SWADroid/res/drawable-hdpi/test.png b/SWADroid/res/drawable-hdpi/test.png
new file mode 100644
index 00000000..24a54d92
Binary files /dev/null and b/SWADroid/res/drawable-hdpi/test.png differ
diff --git a/SWADroid/res/drawable-ldpi/announce.png b/SWADroid/res/drawable-ldpi/announce.png
new file mode 100644
index 00000000..7e55c16d
Binary files /dev/null and b/SWADroid/res/drawable-ldpi/announce.png differ
diff --git a/SWADroid/res/drawable-ldpi/forum.png b/SWADroid/res/drawable-ldpi/forum.png
new file mode 100644
index 00000000..1d29b18a
Binary files /dev/null and b/SWADroid/res/drawable-ldpi/forum.png differ
diff --git a/SWADroid/res/drawable-ldpi/grades.png b/SWADroid/res/drawable-ldpi/grades.png
new file mode 100644
index 00000000..92a69a9e
Binary files /dev/null and b/SWADroid/res/drawable-ldpi/grades.png differ
diff --git a/SWADroid/res/drawable-ldpi/note.png b/SWADroid/res/drawable-ldpi/note.png
new file mode 100644
index 00000000..d0b2db43
Binary files /dev/null and b/SWADroid/res/drawable-ldpi/note.png differ
diff --git a/SWADroid/res/drawable-ldpi/notif36x36.png b/SWADroid/res/drawable-ldpi/notif36x36.png
new file mode 100644
index 00000000..33426268
Binary files /dev/null and b/SWADroid/res/drawable-ldpi/notif36x36.png differ
diff --git a/SWADroid/res/drawable-ldpi/recmsg.png b/SWADroid/res/drawable-ldpi/recmsg.png
new file mode 100644
index 00000000..e8b4127b
Binary files /dev/null and b/SWADroid/res/drawable-ldpi/recmsg.png differ
diff --git a/SWADroid/res/drawable-ldpi/test.png b/SWADroid/res/drawable-ldpi/test.png
new file mode 100644
index 00000000..9418a40a
Binary files /dev/null and b/SWADroid/res/drawable-ldpi/test.png differ
diff --git a/SWADroid/res/drawable-mdpi/announce.png b/SWADroid/res/drawable-mdpi/announce.png
new file mode 100644
index 00000000..08081655
Binary files /dev/null and b/SWADroid/res/drawable-mdpi/announce.png differ
diff --git a/SWADroid/res/drawable-mdpi/forum.png b/SWADroid/res/drawable-mdpi/forum.png
new file mode 100644
index 00000000..f7467632
Binary files /dev/null and b/SWADroid/res/drawable-mdpi/forum.png differ
diff --git a/SWADroid/res/drawable-mdpi/grades.png b/SWADroid/res/drawable-mdpi/grades.png
new file mode 100644
index 00000000..e0a80b77
Binary files /dev/null and b/SWADroid/res/drawable-mdpi/grades.png differ
diff --git a/SWADroid/res/drawable-mdpi/note.png b/SWADroid/res/drawable-mdpi/note.png
new file mode 100644
index 00000000..d7a4052d
Binary files /dev/null and b/SWADroid/res/drawable-mdpi/note.png differ
diff --git a/SWADroid/res/drawable-mdpi/notif.png b/SWADroid/res/drawable-mdpi/notif.png
new file mode 100644
index 00000000..11106670
Binary files /dev/null and b/SWADroid/res/drawable-mdpi/notif.png differ
diff --git a/SWADroid/res/drawable-mdpi/recmsg.png b/SWADroid/res/drawable-mdpi/recmsg.png
new file mode 100644
index 00000000..8647b493
Binary files /dev/null and b/SWADroid/res/drawable-mdpi/recmsg.png differ
diff --git a/SWADroid/res/drawable-mdpi/test.png b/SWADroid/res/drawable-mdpi/test.png
new file mode 100644
index 00000000..57058ce4
Binary files /dev/null and b/SWADroid/res/drawable-mdpi/test.png differ
diff --git a/SWADroid/res/layout/functions_list_item.xml b/SWADroid/res/layout/functions_list_item.xml
index 141ef7bc..9035e8f2 100644
--- a/SWADroid/res/layout/functions_list_item.xml
+++ b/SWADroid/res/layout/functions_list_item.xml
@@ -1,21 +1,25 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout
   xmlns:android="http://schemas.android.com/apk/res/android"
-  android:layout_height="wrap_content" android:layout_width="match_parent" android:orientation="horizontal">
+  android:layout_height="wrap_content"
+  android:layout_width="match_parent"
+  android:orientation="horizontal"
+  android:background="#ffffff">
 
  <ImageView 
    android:id="@+id/functionIcon"
    android:layout_gravity="center_vertical"
    android:layout_width="wrap_content"
-   android:layout_height="wrap_content">
+   android:layout_height="wrap_content"
+   android:layout_marginLeft="6dip">
  </ImageView>
  
  <TextView
   android:id="@+id/functionText"
   android:layout_width="fill_parent"
   android:layout_height="wrap_content"
-  android:padding="20dp"
-  android:textColor="#ffffff"
+  android:padding="20dip"
+  android:textColor="#000000"
   android:textSize="24sp">
  </TextView>
 </LinearLayout>
\ No newline at end of file
diff --git a/SWADroid/res/layout/main.xml b/SWADroid/res/layout/main.xml
index 0ab4b6e6..5173e83b 100644
--- a/SWADroid/res/layout/main.xml
+++ b/SWADroid/res/layout/main.xml
@@ -2,7 +2,8 @@
 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:orientation="vertical"
     android:layout_width="fill_parent"
-    android:layout_height="fill_parent"> 
+    android:layout_height="fill_parent"
+    android:background="#ffffff"> 
     
     <ListView
        	android:id="@+id/android:list"
diff --git a/SWADroid/res/layout/notifications.xml b/SWADroid/res/layout/notifications.xml
index 0ec1269b..921f2948 100644
--- a/SWADroid/res/layout/notifications.xml
+++ b/SWADroid/res/layout/notifications.xml
@@ -2,7 +2,8 @@
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:orientation="vertical"
     android:layout_width="fill_parent"
-    android:layout_height="fill_parent">
+    android:layout_height="fill_parent"
+    android:background="#ffffff">
     
     <Button
 		android:id="@+id/notificationsUpdateButton"
diff --git a/SWADroid/res/layout/notifications_list_item.xml b/SWADroid/res/layout/notifications_list_item.xml
index 71e36b05..b276526c 100644
--- a/SWADroid/res/layout/notifications_list_item.xml
+++ b/SWADroid/res/layout/notifications_list_item.xml
@@ -1,7 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?> 
 <LinearLayout
   xmlns:android="http://schemas.android.com/apk/res/android"
-  android:layout_height="wrap_content" android:layout_width="match_parent" android:orientation="horizontal">
+  android:layout_height="wrap_content"
+  android:layout_width="match_parent"
+  android:orientation="horizontal"
+  android:background="#ffffff">
    
  <LinearLayout
   xmlns:android="http://schemas.android.com/apk/res/android"
@@ -50,7 +53,7 @@
 		android:id="@+id/eventType"
 		android:layout_height="wrap_content"
 		android:layout_width="match_parent"
-  		android:textColor="#ffffff"
+  		android:textColor="#000000"
   		android:textSize="18sp"
   		android:textStyle="bold" />
 		
@@ -58,7 +61,7 @@
 		android:id="@+id/eventLocation"
 		android:layout_height="wrap_content"
 		android:layout_width="match_parent"
-  		android:textColor="#ffffff"
+  		android:textColor="#000000"
   		android:padding="1dip" />
 		
     <TextView
@@ -66,7 +69,7 @@
 		android:layout_height="wrap_content"
 		android:layout_width="match_parent"
     	android:singleLine="false"
-  		android:textColor="#ffffff"
+  		android:textColor="#000000"
   		android:textSize="16sp"
   		android:padding="2dip" />
  </LinearLayout>
diff --git a/SWADroid/res/values-es/strings.xml b/SWADroid/res/values-es/strings.xml
index 40202144..95396144 100644
--- a/SWADroid/res/values-es/strings.xml
+++ b/SWADroid/res/values-es/strings.xml
@@ -33,5 +33,6 @@
 <string name="noMsg">No</string>
 <string name="firstRunMsg">Antes de usar la aplicación por primera vez debe introducir el nombre de usuario y la contraseña de acceso a SWAD en la pantalla de configuración.\n\nPuede acceder a la pantalla de configuración desde el menú de la aplicación en cualquier momento.\n\n¿Desea abrir ahora la pantalla de configuración?</string>
 <string name="initialDialogTitle">IMPORTANTE</string>
+<string name="errorServerResponseMsg">Error en respuesta del servidor</string><string name="errorConnectionMsg">Error durante la conexión con el servidor</string><string name="errorTimeoutMsg">Tiempo de espera agotado intentando conectar con el servidor</string>
 
 </resources>
\ No newline at end of file
diff --git a/SWADroid/res/values/strings.xml b/SWADroid/res/values/strings.xml
index 8026333f..d1819b5f 100644
--- a/SWADroid/res/values/strings.xml
+++ b/SWADroid/res/values/strings.xml
@@ -35,7 +35,9 @@
 <string name="dateMsg">Date</string>
 <string name="yesMsg">Yes</string>
 <string name="noMsg">No</string><string name="firstRunMsg">Before using the application for the first time you must enter the user name and password for SWAD at the setup screen.\n\nYou can access to the setup screen from the application menu anytime.\n\nDo you want to open the configuration screen now?</string>
-<string name="initialDialogTitle">IMPORTANT</string>
+<string name="initialDialogTitle">IMPORTANT</string><string name="errorServerResponseMsg">Error in server response</string>
+<string name="errorConnectionMsg">Error while connecting to server</string>
+<string name="errorTimeoutMsg">Timeout trying to connect to the server</string>