diff --git a/res/layout/main_activity.xml b/res/layout/main_activity.xml
index 0544109..0bf571a 100644
--- a/res/layout/main_activity.xml
+++ b/res/layout/main_activity.xml
@@ -46,4 +46,27 @@
         android:layout_marginTop="21dp"
         android:textAppearance="?android:attr/textAppearanceSmall" />
 
+    <TextView
+        android:id="@+id/textViewAlerta"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignBottom="@+id/imageViewAlerta"
+        android:layout_alignTop="@+id/imageViewAlerta"
+        android:layout_toRightOf="@+id/imageViewAlerta"
+        android:text="@string/alertVitamioNotInstalled"
+        android:textColor="@color/Orange"
+        android:visibility="invisible" />
+
+    <ImageView
+        android:id="@+id/imageViewAlerta"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_above="@+id/button"
+        android:layout_alignLeft="@+id/button"
+        android:layout_marginBottom="28dp"
+        android:layout_marginLeft="17dp"
+        android:contentDescription="@string/alertLogoDescription"
+        android:src="@android:drawable/ic_dialog_alert"
+        android:visibility="invisible" />
+
 </RelativeLayout>
\ No newline at end of file
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 7f1500b..9febb11 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -39,5 +39,7 @@
         <item >2</item>
     </string-array>
     <string name="defaultQuality">0</string>
+    <string name="alertVitamioNotInstalled">Alerta! Llibreries de Vitamio no instalades!</string>
+    <string name="alertLogoDescription">Alerta!</string>
 
 </resources>
\ No newline at end of file
diff --git a/src/com/upc/pbe/upcnews/MainActivity.java b/src/com/upc/pbe/upcnews/MainActivity.java
index befbabc..cb058c1 100644
--- a/src/com/upc/pbe/upcnews/MainActivity.java
+++ b/src/com/upc/pbe/upcnews/MainActivity.java
@@ -13,6 +13,7 @@ import android.view.MenuItem;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.ImageButton;
+import android.widget.ImageView;
 import android.widget.TextView;
 import android.widget.Toast;
 
@@ -21,8 +22,9 @@ public class MainActivity extends Activity implements OnClickListener {
 	
 	private final static String TAG = "Main";
 	private static String html;
+	private ImageView alerta;
 	private ImageButton buttonDescarrega;
-	private TextView URLText;
+	private TextView URLText, alertaText;
 	
 	@Override
 	public void onCreate(Bundle savedInstanceState){
@@ -40,6 +42,13 @@ public class MainActivity extends Activity implements OnClickListener {
 		buttonDescarrega = (ImageButton) findViewById(R.id.button);
 		buttonDescarrega.setOnClickListener(this);
 		updateURL();
+		//Mostrem el missatge d'alerta si Vitamio no esta instalat
+		if(!io.vov.vitamio.LibsChecker.checkVitamioLibs(this)){
+			alerta = (ImageView) findViewById(R.id.imageViewAlerta);
+			alerta.setVisibility(View.VISIBLE);
+			alertaText = (TextView) findViewById(R.id.textViewAlerta);
+			alertaText.setVisibility(View.VISIBLE);
+		}
 	}
 	
 	public void onClick(View v) {