diff --git a/conductor.cpp b/conductor.cpp
index 0cbae0639..bdd6c55a1 100644
--- a/conductor.cpp
+++ b/conductor.cpp
@@ -41,6 +41,8 @@ Conductor::Conductor(Terminal *p1, Terminal* p2, Element *parent, QGraphicsScene
 	terminal2(p2),
 	destroyed(false),
 	segments(NULL),
+	moving_point(false),
+	moving_segment(false),
 	previous_z_value(zValue()),
 	modified_path(false),
 	has_to_save_profile(false)
diff --git a/element.cpp b/element.cpp
index 3cfe17eb7..40274c878 100644
--- a/element.cpp
+++ b/element.cpp
@@ -258,11 +258,21 @@ void Element::setPos(qreal x, qreal y) {
 	setPos(QPointF(x, y));
 }
 
+/**
+	Gere l'enfoncement d'un bouton de la souris
+*/
+void Element::mousePressEvent(QGraphicsSceneMouseEvent *e) {
+	if (!isSelected() && e -> modifiers() & Qt::ControlModifier) {
+		setSelected(true);
+	}
+	QGraphicsItem::mousePressEvent(e);
+}
+
 /**
 	Gere les mouvements de souris lies a l'element
 */
 void Element::mouseMoveEvent(QGraphicsSceneMouseEvent *e) {
-	if (e -> buttons() & Qt::LeftButton) {
+	if (isSelected() && e -> buttons() & Qt::LeftButton) {
 		QPointF oldPos = pos();
 		setPos(mapToParent(e -> pos()) - matrix().map(e -> buttonDownPos(Qt::LeftButton)));
 		if (Diagram *diagram_ptr = diagram()) {
diff --git a/element.h b/element.h
index 79847c90c..e4a858f5c 100644
--- a/element.h
+++ b/element.h
@@ -114,6 +114,7 @@ class Element : public QGraphicsItem {
 	
 	protected:
 	void drawAxes(QPainter *, const QStyleOptionGraphicsItem *);
+	void mousePressEvent(QGraphicsSceneMouseEvent *);
 	void mouseMoveEvent(QGraphicsSceneMouseEvent *);
 	void mouseReleaseEvent(QGraphicsSceneMouseEvent *);