diff --git a/YACReader/comic.cpp b/YACReader/comic.cpp
index e7da590c..7cbd1dc5 100644
--- a/YACReader/comic.cpp
+++ b/YACReader/comic.cpp
@@ -27,7 +27,7 @@ Comic::Comic(const QString pathFile)
 //-----------------------------------------------------------------------------
 Comic::~Comic()
 {
-	QThread::~QThread();
+	//QThread::~QThread();
 	/*delete _7z;
 	delete _7ze;
 	delete bm;*/ //TODO safe delete
diff --git a/common/yacreader_flow_gl.cpp b/common/yacreader_flow_gl.cpp
index 70723870..a9d2feb9 100644
--- a/common/yacreader_flow_gl.cpp
+++ b/common/yacreader_flow_gl.cpp
@@ -179,7 +179,7 @@ struct Preset pressetYACReaderFlowDownConfig = {
 };
 /*Constructor*/
 YACReaderFlowGL::YACReaderFlowGL(QWidget *parent,struct Preset p)
-	:QGLWidget(QGLFormat(QGL::DoubleBuffer), parent),numObjects(0)
+	:QGLWidget(QGLFormat(QGL::DoubleBuffer), parent),numObjects(0),lazyPopulateObjects(-1)
 {
 	updateCount = 0;
 	config = p;
@@ -217,6 +217,7 @@ YACReaderFlowGL::YACReaderFlowGL(QWidget *parent,struct Preset p)
 
 	loaderThread->start();*/
 	timerId = startTimer(16);
+
 }
 
 void YACReaderFlowGL::timerEvent(QTimerEvent * event)
@@ -254,7 +255,10 @@ void YACReaderFlowGL::initializeGL()
 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 
-	//populate(284); //TODO esto es responsabilidad del usuario de la clase
+	defaultTexture = bindTexture(QImage(":/images/defaultCover.png"),GL_TEXTURE_2D,GL_RGBA,QGLContext::LinearFilteringBindOption | QGLContext::MipmapBindOption);
+	markTexture = bindTexture(QImage(":/images/setRead.png"),GL_TEXTURE_2D,GL_RGBA,QGLContext::LinearFilteringBindOption | QGLContext::MipmapBindOption);
+	if(lazyPopulateObjects!=-1)
+		populate(lazyPopulateObjects); //TODO esto es responsabilidad del usuario de la clase
 
 	//float x = 0.5;
 	//int i;
@@ -512,7 +516,7 @@ void YACReaderFlowGL::draw()
 	glColor4f( 1.0, 1.0, 1.0, 1.0 );	
 	glVertex2f( -0.03, 0.98);
 	glVertex2f( 0.03, 0.98);
-	glVertex2f( 0, 0.95);
+	glVertex2f( 0, 0.949);
 
 	glEnd();
 
@@ -676,10 +680,9 @@ void YACReaderFlowGL::populate(int n)
 	float x = 1;
 	float y = 1 * (700/480.0);
 	int i;
-	GLuint cover = bindTexture(QImage(":/images/defaultCover.png"),GL_TEXTURE_2D,GL_RGBA,QGLContext::LinearFilteringBindOption | QGLContext::MipmapBindOption);
-	markTexture = bindTexture(QImage(":/images/setRead.png"),GL_TEXTURE_2D,GL_RGBA,QGLContext::LinearFilteringBindOption | QGLContext::MipmapBindOption);
+
 	for(i = 0;i<n;i++){
-		insert("cover", cover, x, y);
+		insert("cover", defaultTexture, x, y);
 	}
 
 	/*
@@ -698,11 +701,12 @@ void YACReaderFlowGL::populate(int n)
 	//worker->start();
 }
 
-void YACReaderFlowGL::reset() //TODO unbind textures
+void YACReaderFlowGL::reset()
 {
 	loaded.clear();
 	for(int i = 0;i<numObjects;i++){
-		deleteTexture(cfImages[i].img);
+		if(cfImages[i].img != defaultTexture)
+			deleteTexture(cfImages[i].img);
 	}
 	if(numObjects>0)
 		delete[] cfImages;
@@ -848,7 +852,7 @@ void YACReaderFlowGL::keyPressEvent(QKeyEvent *event)
 	if(event->key() == Qt::Key_Left)
 	{
 		if(event->modifiers() == Qt::ControlModifier)
-			setCurrentIndex(currentSelected-10);
+			setCurrentIndex((currentSelected-10<0)?0:currentSelected-10);
 		else
 			showPrevious();
 		event->accept();
@@ -858,7 +862,7 @@ void YACReaderFlowGL::keyPressEvent(QKeyEvent *event)
 	if(event->key() == Qt::Key_Right)
 	{
 		if(event->modifiers() == Qt::ControlModifier)
-			setCurrentIndex(currentSelected+10);
+			setCurrentIndex((currentSelected+10>=numObjects)?numObjects-1:currentSelected+10);
 		else
 			showNext();
 		event->accept();
@@ -1068,11 +1072,13 @@ void YACReaderPageFlowGL::updateImageData()
 
 void YACReaderPageFlowGL::populate(int n)
 {
-	YACReaderFlowGL::populate(n);
+	worker->reset();
+	if(lazyPopulateObjects!=-1)
+		YACReaderFlowGL::populate(n);
+	lazyPopulateObjects = n;
 	imagesReady = QVector<bool> (n,false);
 	rawImages = QVector<QByteArray> (n);
 	imagesSetted = QVector<bool> (n,false); //puede sobrar
-
 }
 
 
diff --git a/common/yacreader_flow_gl.h b/common/yacreader_flow_gl.h
index 4b018ec5..7fa5dd3a 100644
--- a/common/yacreader_flow_gl.h
+++ b/common/yacreader_flow_gl.h
@@ -96,15 +96,13 @@ extern struct Preset pressetYACReaderFlowDownConfig;
 class YACReaderFlowGL : public QGLWidget
 {
 	Q_OBJECT
-private:
+protected:
 	int timerId;
 	/*** System variables ***/
 	CFImage dummy;
 	int viewRotateActive;
 	float stepBackup;
 
-	GLuint markTexture;
-
 	/*functions*/
 	void calcPos(CFImage *CF,int pos);
 	void calcRV(RVect *RV,int pos);
@@ -115,7 +113,8 @@ private:
 	WidgetLoader * loader;
 	int fontSize;
 
-protected:
+	GLuint defaultTexture;
+	GLuint markTexture;
     void initializeGL();
     void paintGL();
 	void timerEvent(QTimerEvent *);
@@ -124,6 +123,7 @@ protected:
 public:
 	//number of Covers
 	int numObjects;
+	int lazyPopulateObjects;
 	bool showMarks;
 	QVector<bool> loaded;
 	QVector<bool> marks;
@@ -287,7 +287,7 @@ public:
 	// returns FALSE if worker is still busy and can't take the task
 	bool busy() const;
 	void generate(int index, const QString& fileName);
-	void reset(){idx = -1;};
+	void reset(){idx = -1;fileName="";};
 	int index() const { return idx; };
 	QImage result();
 	YACReaderFlowGL * flow;
@@ -318,7 +318,7 @@ public:
 	// returns FALSE if worker is still busy and can't take the task
 	bool busy() const;
 	void generate(int index, const QByteArray& raw);
-	void reset(){idx = -1;};
+	void reset(){idx = -1; rawData.clear();};
 	int index() const { return idx; };
 	QImage result();
 	YACReaderFlowGL * flow;