diff --git a/YACReader/comic.cpp b/YACReader/comic.cpp
index 517feaeb..96660a4f 100644
--- a/YACReader/comic.cpp
+++ b/YACReader/comic.cpp
@@ -264,12 +264,14 @@ void FileComic::fileExtracted(int index, const QByteArray & rawData)
 
 void FileComic::crcError(int index)
 {
-	emit errorOpening(tr("CRC error"));
+	emit errorOpening(tr("CRC error: some of the pages will not be displayed correctly"));
 }
 
+//TODO: comprobar que si se produce uno de estos errores, la carga del cómic es irrecuperable
 void FileComic::unknownError(int index)
 {
-	emit errorOpening(tr("Unknown error opening the file"));
+	//emit errorOpening(tr("Unknown error opening the file"));
+	//emit errorOpening();
 }
 
 //--------------------------------------
diff --git a/YACReader/render.cpp b/YACReader/render.cpp
index d1fce827..199ad3aa 100644
--- a/YACReader/render.cpp
+++ b/YACReader/render.cpp
@@ -606,6 +606,7 @@ void Render::load(const QString & path, int atPage)
 	previousIndex = currentIndex = 0;
 
 	connect(comic,SIGNAL(errorOpening()),this,SIGNAL(errorOpening()));
+	connect(comic,SIGNAL(errorOpening(QString)),this,SIGNAL(errorOpening(QString)));
 	connect(comic,SIGNAL(errorOpening()),this,SLOT(reset()));
 	connect(comic,SIGNAL(imageLoaded(int)),this,SIGNAL(imageLoaded(int)));
 	connect(comic,SIGNAL(imageLoaded(int)),this,SLOT(pageRawDataReady(int)));
diff --git a/YACReader/render.h b/YACReader/render.h
index eb22efd3..90471f2e 100644
--- a/YACReader/render.h
+++ b/YACReader/render.h
@@ -165,6 +165,7 @@ signals:
 	void pageChanged(int index);
 	void numPages(unsigned int numPages);
 	void errorOpening();
+	void errorOpening(QString);
 	void currentPageIsBookmark(bool);
 	void isLast();
 	void isCover();
diff --git a/YACReader/viewer.cpp b/YACReader/viewer.cpp
index f99a022b..f63266f2 100644
--- a/YACReader/viewer.cpp
+++ b/YACReader/viewer.cpp
@@ -157,6 +157,7 @@ void Viewer::createConnections()
 	//render
 	connect(render,SIGNAL(errorOpening()),this,SLOT(resetContent()));
 	connect(render,SIGNAL(errorOpening()),this,SLOT(showMessageErrorOpening()));
+	connect(render,SIGNAL(errorOpening(QString)),this,SLOT(showMessageErrorOpening(QString)));
 	connect(render,SIGNAL(numPages(unsigned int)),goToFlow,SLOT(setNumSlides(unsigned int)));
 	connect(render,SIGNAL(numPages(unsigned int)),goToDialog,SLOT(setNumPages(unsigned int)));
 	//connect(render,SIGNAL(numPages(unsigned int)),this,SLOT(updateInformation()));
@@ -203,6 +204,11 @@ void Viewer::showMessageErrorOpening()
 	QMessageBox::critical(NULL,tr("Not found"),tr("Comic not found"));
 }
 
+void Viewer::showMessageErrorOpening(QString message)
+{
+	QMessageBox::critical(NULL,tr("Error opening"),message);
+}
+
 void Viewer::next()
 {
 	direction = 1;
@@ -238,6 +244,11 @@ void Viewer::updatePage()
 	//TODO -> update bookmark action
 	setFocus(Qt::ShortcutFocusReason);
 	delete previousPage;
+
+	//TODO: fix loading...please wait!
+	if(currentPage->isNull())
+		setPageUnavailableMessage();
+
 	if(restoreMagnifyingGlass)
 	{
 		restoreMagnifyingGlass = false;
@@ -669,6 +680,17 @@ void Viewer::setLoadingMessage()
 	configureContent(tr("Loading...please wait!"));
 }
 
+void Viewer::setPageUnavailableMessage()
+{
+	if(magnifyingGlassShowed)
+	{
+		hideMagnifyingGlass();
+		restoreMagnifyingGlass = true;
+	}
+	emit(pageAvailable(false));
+	configureContent(tr("Page not available!"));
+}
+
 void Viewer::configureContent(QString msg)
 {
     content->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
diff --git a/YACReader/viewer.h b/YACReader/viewer.h
index 338a05a3..404f3695 100644
--- a/YACReader/viewer.h
+++ b/YACReader/viewer.h
@@ -64,6 +64,7 @@ class NotificationsLabelWidget;
         void doublePageSwitch();
 		void resetContent();
 		void setLoadingMessage();
+		void setPageUnavailableMessage();
 		void configureContent(QString msg);
 		void hideCursor();
 		void showCursor();
@@ -77,6 +78,7 @@ virtual void mouseReleaseEvent ( QMouseEvent * event );
 		void updateFitToWidthRatio(float ratio);
 		void updateConfig(QSettings * settings);
 		void showMessageErrorOpening();
+		void showMessageErrorOpening(QString);
 		void setBookmarks();
 		void updateImageOptions();
 		void showIsCoverMessage();