diff --git a/bazaar/SurfaceCtrl/SketchupCamera.h b/bazaar/SurfaceCtrl/SketchupCamera.h
index af18b075f..54583d73d 100644
--- a/bazaar/SurfaceCtrl/SketchupCamera.h
+++ b/bazaar/SurfaceCtrl/SketchupCamera.h
@@ -64,6 +64,7 @@ class SketchupCamera : public UOGL_Camera {
 		virtual SketchupCamera& ProcessMouveMouvement(float xoffset, float yoffset){
 			if(MouseMiddlePressed) return ProcessMouseWheelMouvement(xoffset,yoffset);
 			if(MouseLeftPressed) return ProcessMouseLeftMouvement(xoffset,yoffset);
+			return *this;
 		}
 		
 		virtual bool ProcessKeyBoard(unsigned long Key,int count){
diff --git a/bazaar/SurfaceCtrl/SurfaceCtrl.cpp b/bazaar/SurfaceCtrl/SurfaceCtrl.cpp
index ef351593c..7dd919fcf 100644
--- a/bazaar/SurfaceCtrl/SurfaceCtrl.cpp
+++ b/bazaar/SurfaceCtrl/SurfaceCtrl.cpp
@@ -242,6 +242,7 @@ void SurfaceCtrl::MiddleUp(Point p, dword keyflags){
 }
 void SurfaceCtrl::MouseLeave(){
 	camera.MouseMiddlePressed = false;
+	camera.MouseLeftPressed = false;
 	return;
 }
 }
\ No newline at end of file
diff --git a/bazaar/SurfaceCtrl/TrackBallCamera.h b/bazaar/SurfaceCtrl/TrackBallCamera.h
index 4f2edc447..db7e29eb9 100644
--- a/bazaar/SurfaceCtrl/TrackBallCamera.h
+++ b/bazaar/SurfaceCtrl/TrackBallCamera.h
@@ -141,6 +141,7 @@ class TrackBallCamera : public UOGL_Camera {
 		virtual TrackBallCamera& ProcessMouveMouvement(float xoffset, float yoffset){
 			if(MouseMiddlePressed) return ProcessMouseWheelMouvement(xoffset,yoffset);
 			if(MouseLeftPressed) return ProcessMouseLeftMouvement(xoffset,yoffset);
+			return *this;
 		}