diff --git a/graph.c b/graph.c
index b473a193..9029f439 100644
--- a/graph.c
+++ b/graph.c
@@ -1011,11 +1011,32 @@ void Fill_general(byte fill_color)
 ////////////////////////// avec gestion de previews //////////////////////////
 //////////////////////////////////////////////////////////////////////////////
 
+  // Data used by ::Init_permanent_draw() and ::Pixel_figure_permanent()
+  static Uint32 Permanent_draw_next_refresh=0;
+  static int Permanent_draw_count=0;
+
+  void Init_permanent_draw(void)
+  {
+    Permanent_draw_count = 0;
+    Permanent_draw_next_refresh = SDL_GetTicks() + 100;
+  }
 
   // Affichage d'un point de façon définitive (utilisation du pinceau)
   void Pixel_figure_permanent(word x_pos,word y_pos,byte color)
   {
     Display_paintbrush(x_pos,y_pos,color,0);
+    Permanent_draw_count ++;
+    
+    // Check every 8 pixels
+    if (! (Permanent_draw_count&7))
+    {
+      Uint32 now = SDL_GetTicks();
+      if (now>= Permanent_draw_next_refresh)
+      {
+        Permanent_draw_next_refresh = now+100;
+        Flush_update();
+      }
+    }
   }
 
   // Affichage d'un point de façon définitive
@@ -1157,6 +1178,7 @@ void Draw_empty_circle_general(short center_x,short center_y,short radius,byte c
 void Draw_empty_circle_permanent(short center_x,short center_y,short radius,byte color)
 {
   Pixel_figure=Pixel_figure_permanent;
+  Init_permanent_draw();
   Draw_empty_circle_general(center_x,center_y,radius,color);
   Update_part_of_screen(center_x - radius, center_y - radius, 2* radius+1, 2*radius+1);
 }
@@ -1299,6 +1321,7 @@ void Draw_empty_ellipse_general(short center_x,short center_y,short horizontal_r
 void Draw_empty_ellipse_permanent(short center_x,short center_y,short horizontal_radius,short vertical_radius,byte color)
 {
   Pixel_figure=Pixel_figure_permanent;
+  Init_permanent_draw();
   Draw_empty_ellipse_general(center_x,center_y,horizontal_radius,vertical_radius,color);
   Update_part_of_screen(center_x - horizontal_radius, center_y - vertical_radius, 2* horizontal_radius+1, 2*vertical_radius+1);
 }
@@ -1498,8 +1521,7 @@ void Draw_line_general(short start_x,short start_y,short end_x,short end_y, byte
   short incr_x,incr_y;
   short i,cumul;
   short delta_x,delta_y;
-
-
+  
   x_pos=start_x;
   y_pos=start_y;
 
@@ -1563,11 +1585,12 @@ void Draw_line_general(short start_x,short start_y,short end_x,short end_y, byte
 
   // -- Tracer définitif d'une ligne --
 
-void Draw_line_permanet(short start_x,short start_y,short end_x,short end_y, byte color)
+void Draw_line_permanent(short start_x,short start_y,short end_x,short end_y, byte color)
 {
 
   int w = end_x-start_x, h = end_y - start_y;
   Pixel_figure=Pixel_figure_permanent;
+  Init_permanent_draw();
   Draw_line_general(start_x,start_y,end_x,end_y,color);
   Update_part_of_screen((start_x<end_x)?start_x:end_x,(start_y<end_y)?start_y:end_y,abs(w)+1,abs(h)+1);
 }
@@ -1762,6 +1785,7 @@ void Draw_curve_permanent(short x1, short y1,
                              byte color)
 {
   Pixel_figure=Pixel_figure_permanent;
+  Init_permanent_draw();
   Draw_curve_general(x1,y1,x2,y2,x3,y3,x4,y4,color);
 }
 
diff --git a/graph.h b/graph.h
index aded3bd4..e21b3c93 100644
--- a/graph.h
+++ b/graph.h
@@ -68,7 +68,7 @@ void Draw_filled_ellipse        (short center_x,short center_y,short horizontal_
 
 void Clamp_coordinates_regular_angle(short ax, short ay, short* bx, short* by);
 void Draw_line_general(short start_x,short start_y,short end_x,short end_y, byte color);
-void Draw_line_permanet  (short start_x,short start_y,short end_x,short end_y,byte color);
+void Draw_line_permanent  (short start_x,short start_y,short end_x,short end_y,byte color);
 void Draw_line_preview    (short start_x,short start_y,short end_x,short end_y,byte color);
 void Draw_line_preview_xor(short start_x,short start_y,short end_x,short end_y,byte color);
 void Draw_line_preview_xorback(short start_x,short start_y,short end_x,short end_y,byte color);
diff --git a/input.c b/input.c
index 8900406f..20f88655 100644
--- a/input.c
+++ b/input.c
@@ -53,7 +53,8 @@ byte Directional_click;
 long Directional_delay;
 long Directional_last_move;
 long Directional_step;
-short Mouse_count; // Number of mouse movements received in the current Get_input()
+int  Mouse_moved; ///< Boolean, Set to true if any cursor movement occurs.
+int  Mouse_blocked; ///< Boolean, Set to true if mouse movement was clipped.
 
 word Input_new_mouse_X;
 word Input_new_mouse_Y;
@@ -112,19 +113,18 @@ int Is_shortcut(word Key, word function)
 int Move_cursor_with_constraints()
 {
   int feedback=0;
-  byte bl=0;//BL va indiquer si on doit corriger la position du curseur
   
   // Clip mouse to the editing area. There can be a border when using big 
   // pixels, if the SDL screen dimensions are not factors of the pixel size.
   if (Input_new_mouse_Y>=Screen_height)
   {
       Input_new_mouse_Y=Screen_height-1;
-      bl=1;
+      Mouse_blocked=1;
   }
   if (Input_new_mouse_X>=Screen_width)
   {
       Input_new_mouse_X=Screen_width-1;
-      bl=1;
+      Mouse_blocked=1;
   }
   //Gestion "avancée" du curseur: interdire la descente du curseur dans le
   //menu lorsqu'on est en train de travailler dans l'image
@@ -136,7 +136,7 @@ int Move_cursor_with_constraints()
         if(Menu_Y<=Input_new_mouse_Y)
         {
             //On bloque le curseur en fin d'image
-            bl++;
+            Mouse_blocked=1;
             Input_new_mouse_Y=Menu_Y-1; //La ligne !!au-dessus!! du menu
         }
 
@@ -146,7 +146,7 @@ int Move_cursor_with_constraints()
             {
                 if(Input_new_mouse_X>=Main_separator_position)
                 {
-                    bl++;
+                    Mouse_blocked=1;
                     Input_new_mouse_X=Main_separator_position-1;
                 }
             }
@@ -154,7 +154,7 @@ int Move_cursor_with_constraints()
             {
                 if(Input_new_mouse_X<Main_X_zoom)
                 {
-                    bl++;
+                    Mouse_blocked=1;
                     Input_new_mouse_X=Main_X_zoom;
                 }
             }
@@ -172,20 +172,24 @@ int Move_cursor_with_constraints()
       if (Input_new_mouse_K == 0)
         Input_sticky_control = 0;
     }
-    Hide_cursor(); // On efface le curseur AVANT de le déplacer...
+    // Hide cursor, because even just a click change needs it
+    if (!Mouse_moved)
+    {
+      Mouse_moved=1;
+      // Hide cursor (erasing icon and brush on screen
+      // before changing the coordinates.
+      Hide_cursor();
+    }
     if (Input_new_mouse_X != Mouse_X || Input_new_mouse_Y != Mouse_Y)
     {
       Mouse_X=Input_new_mouse_X;
       Mouse_Y=Input_new_mouse_Y;
-      if (bl)
+      if (Mouse_blocked)
         Set_mouse_position();
     }
     Mouse_K=Input_new_mouse_K;
-    Compute_paintbrush_coordinates();
-    Display_cursor();
     
-    Mouse_count++;
-    if (Mouse_count>Config.Mouse_merge_movement)
+    if (Operation_stack_size != 0)
       feedback=1;
   }
 
@@ -653,7 +657,10 @@ int Get_input(void)
 
     Key_ANSI = 0;
     Key = 0;
-    Mouse_count=0;
+    Mouse_moved=0;
+    Mouse_blocked=0;
+    Input_new_mouse_X = Mouse_X;
+    Input_new_mouse_Y = Mouse_Y;
 
     // Process as much events as possible without redrawing the screen.
     // This mostly allows us to merge mouse events for people with an high
@@ -770,11 +777,20 @@ int Get_input(void)
         }
       }
     }
-    // Vidage de toute mise à jour de l'affichage à l'écran qui serait encore en attente.
-    // (c'est fait ici car on est sur que cette function est apellée partout ou on a besoin d'interragir avec l'utilisateur)
+    // If the cursor was moved since last update,
+    // it was erased, so we need to redraw it (with the preview brush)
+    if (Mouse_moved)
+    {
+      Compute_paintbrush_coordinates();
+      Display_cursor();
+    }
+    // Commit any pending screen update.
+    // This is done in this function because it's called after reading 
+    // some user input.
     Flush_update();
 
-    return user_feedback_required;
+    
+    return Mouse_moved || user_feedback_required;
 }
 
 void Adjust_mouse_sensitivity(word fullscreen)
diff --git a/operatio.c b/operatio.c
index d8ad8908..d9b359ce 100644
--- a/operatio.c
+++ b/operatio.c
@@ -224,7 +224,7 @@ void Freehand_mode1_1_2(void)
   {
     Hide_cursor();
     Print_coordinates();
-    Draw_line_permanet(start_x,start_y,Paintbrush_X,Paintbrush_Y,Fore_color);
+    Draw_line_permanent(start_x,start_y,Paintbrush_X,Paintbrush_Y,Fore_color);
     Display_cursor();
   }
 
@@ -279,7 +279,7 @@ void Freehand_mode1_2_2(void)
   {
     Print_coordinates();
     Hide_cursor();
-    Draw_line_permanet(start_x,start_y,Paintbrush_X,Paintbrush_Y,Back_color);
+    Draw_line_permanent(start_x,start_y,Paintbrush_X,Paintbrush_Y,Back_color);
     Display_cursor();
   }
 
@@ -572,7 +572,7 @@ void Line_0_5(void)
   Pixel_figure_preview_auto  (start_x,start_y);
   Hide_line_preview (start_x,start_y,end_x,end_y);
   Display_paintbrush      (start_x,start_y,color,0);
-  Draw_line_permanet(start_x,start_y,end_x,end_y,color);
+  Draw_line_permanent(start_x,start_y,end_x,end_y,color);
 
   End_of_modification();
   if ( (Config.Coords_rel) && (Menu_is_visible) )
@@ -695,7 +695,7 @@ void K_line_0_6(void)
     Display_paintbrush(start_x,start_y,color,0);
     direction=(direction & 0x7F);
   }
-  Draw_line_permanet(start_x,start_y,Paintbrush_X,Paintbrush_Y,color);
+  Draw_line_permanent(start_x,start_y,Paintbrush_X,Paintbrush_Y,color);
   Paintbrush_shape=PAINTBRUSH_SHAPE_POINT;
 
   Operation_push(direction);
@@ -2242,7 +2242,7 @@ void Polygon_12_9(void)
     Paintbrush_shape=Paintbrush_shape_before_operation;
     // Le pied aurait été de ne pas repasser sur le 1er point de la 1ère ligne
     // mais c'est pas possible :(
-    Draw_line_permanet(start_x,start_y,end_x,end_y,color);
+    Draw_line_permanent(start_x,start_y,end_x,end_y,color);
     Paintbrush_shape=PAINTBRUSH_SHAPE_POINT;
 
     Display_cursor();
@@ -2534,7 +2534,7 @@ void Polyform_12_8(void)
       Hide_line_preview(start_x,start_y,end_x,end_y);
 
       // On l'affiche de façon définitive:
-      Draw_line_permanet(start_x,start_y,Paintbrush_X,Paintbrush_Y,color);
+      Draw_line_permanent(start_x,start_y,Paintbrush_X,Paintbrush_Y,color);
 
       // Et on affiche un pixel de preview en (Paintbrush_X,Paintbrush_Y):
       Pixel_figure_preview(Paintbrush_X,Paintbrush_Y,color);
@@ -2565,7 +2565,7 @@ void Polyform_12_8(void)
     Hide_line_preview(start_x,start_y,end_x,end_y);
 
     // On affiche de façon définitive le bouclage du polygone:
-    Draw_line_permanet(start_x,start_y,initial_x,initial_y,color);
+    Draw_line_permanent(start_x,start_y,initial_x,initial_y,color);
 
     Display_cursor();
     End_of_modification();
@@ -5056,7 +5056,7 @@ void Centered_lines_12_7(void)
 
             Smear_start=1;
             Display_paintbrush      (start_x,start_y,color,0);
-            Draw_line_permanet(start_x,start_y,Paintbrush_X,Paintbrush_Y,color);
+            Draw_line_permanent(start_x,start_y,Paintbrush_X,Paintbrush_Y,color);
 
             Paintbrush_shape=PAINTBRUSH_SHAPE_POINT;
             Pixel_figure_preview(Paintbrush_X,Paintbrush_Y,color);