diff --git a/crlcore/src/ccore/alliance/ap/ApParser.cpp b/crlcore/src/ccore/alliance/ap/ApParser.cpp
index 28470a93..ada9d7c0 100644
--- a/crlcore/src/ccore/alliance/ap/ApParser.cpp
+++ b/crlcore/src/ccore/alliance/ap/ApParser.cpp
@@ -36,8 +36,7 @@
 //
 // $Id$
 //
-// x-----------------------------------------------------------------x
-// |                                                                 |
+// +-----------------------------------------------------------------+
 // |                   C O R I O L I S                               |
 // |          Alliance / Hurricane  Interface                        |
 // |                                                                 |
@@ -45,12 +44,10 @@
 // |  E-mail      :            Christian.Masson@lip6.fr              |
 // | =============================================================== |
 // |  C++ Module  :       "./ApParser.cpp"                           |
-// | *************************************************************** |
-// |  U p d a t e s                                                  |
 // |                                                                 |
 // |  05/06/2008 - Jean-Paul Chaput                                  |
 // |    Complete rewrite & simplification.                           |
-// x-----------------------------------------------------------------x
+// +-----------------------------------------------------------------+
 
 
 #include  <cstdio>
@@ -846,6 +843,8 @@ namespace {
           }
         }
       }
+
+      placeNets(_cell);
     } catch ( Error& e ) {
       if ( e.what() != "[ERROR] ApParser processed" )
         cerr << e.what() << endl;
diff --git a/crlcore/src/ccore/crlcore/ToolBox.h b/crlcore/src/ccore/crlcore/ToolBox.h
index f9590a09..8c90582a 100644
--- a/crlcore/src/ccore/crlcore/ToolBox.h
+++ b/crlcore/src/ccore/crlcore/ToolBox.h
@@ -3,25 +3,21 @@
 // -*- C++ -*-
 //
 // This file is part of the Coriolis Software.
-// Copyright (c) UPMC/LIP6 2008-2009, All Rights Reserved
+// Copyright (c) UPMC/LIP6 2008-2012, All Rights Reserved
 //
 // ===================================================================
 //
 // $Id$
 //
-// x-----------------------------------------------------------------x 
-// |                                                                 |
+// +-----------------------------------------------------------------+ 
 // |                   C O R I O L I S                               |
-// |      K i t e  -  D e t a i l e d   R o u t e r                  |
+// |           Alliance / Hurricane  Interface                       |
 // |                                                                 |
 // |  Author      :                    Jean-Paul CHAPUT              |
 // |  E-mail      :       Jean-Paul.Chaput@asim.lip6.fr              |
 // | =============================================================== |
-// |  C++ Header  :       "./ToolBox.h"                              |
-// | *************************************************************** |
-// |  U p d a t e s                                                  |
-// |                                                                 |
-// x-----------------------------------------------------------------x
+// |  C++ Header  :       "./crlcore/ToolBox.h"                      |
+// +-----------------------------------------------------------------+
 
 
 #ifndef  __CRL_TOOLBOX_H__
@@ -46,11 +42,11 @@ namespace CRL {
   using Hurricane::Occurrence;
 
   Component*      getBestExternalComponent    ( Net* );
-  void            PlaceNet                    ( Net* );
-  void            PlaceNets                   ( Cell* );
-  void            PlaceMasterNets             ( const Library* );
-  void            PlacePlug                   ( Plug* );
-  void            PlacePlugs                  ( Cell* );
+  bool            placeNet                    ( Net* );
+  void            placeNets                   ( Cell* );
+  void            placeMasterNets             ( const Library* );
+  void            placePlug                   ( Plug* );
+  void            placePlugs                  ( Cell* );
   void            createPartRing2             ( Net& );
   void            createPartRing              ( Cell*, Name nom );
   void            createPlugsRing             ( Net& );
@@ -61,8 +57,9 @@ namespace CRL {
   Transformation  getTransformation           ( const Box& abox, const DbU::Unit& x, const DbU::Unit& y, const Transformation::Orientation& orientation );
   bool            isNoInstancePlacedOrFixed   ( Cell* );
   Occurrence      getRootNetOccurrence        ( const Occurrence& netoccurrence );
-  void            ConnectPlugHooks            ( Cell* );
+  void            connectPlugHooks            ( Cell* );
   size_t          getInstancesCount           ( const Cell* cell );
+  void            setNetsPosition             ( Cell* );
 
 } // End of CRL namespace.
 
diff --git a/crlcore/src/ccore/toolbox/ToolBox.cpp b/crlcore/src/ccore/toolbox/ToolBox.cpp
index 8455c076..9a909fb8 100644
--- a/crlcore/src/ccore/toolbox/ToolBox.cpp
+++ b/crlcore/src/ccore/toolbox/ToolBox.cpp
@@ -2,14 +2,13 @@
 // -*- C++ -*-
 //
 // This file is part of the Coriolis Software.
-// Copyright (c) UPMC/LIP6 2008-2009, All Rights Reserved
+// Copyright (c) UPMC/LIP6 2008-2012, All Rights Reserved
 //
 // ===================================================================
 //
 // $Id$
 //
-// x-----------------------------------------------------------------x 
-// |                                                                 |
+// +-----------------------------------------------------------------+ 
 // |                   C O R I O L I S                               |
 // |           Alliance / Hurricane  Interface                       |
 // |                                                                 |
@@ -17,10 +16,7 @@
 // |  E-mail      :       Jean-Paul.Chaput@asim.lip6.fr              |
 // | =============================================================== |
 // |  C++ Module  :       "./ToolBox.cpp"                            |
-// | *************************************************************** |
-// |  U p d a t e s                                                  |
-// |                                                                 |
-// x-----------------------------------------------------------------x
+// +-----------------------------------------------------------------+
 
 
 #include  "hurricane/Plug.h"
@@ -73,61 +69,73 @@ Component* getBestExternalComponent ( Net* net )
 {
   Component* bestComponent = NULL;
 
-  for_each_component ( component, NetExternalComponents::get(net) ) {
-    if ( !bestComponent ) { bestComponent = component; continue; }
+  forEach ( Component*, icomponent, NetExternalComponents::get(net) ) {
+    if ( !bestComponent ) { bestComponent = *icomponent; continue; }
     if (      /*IsOnTop(component->getLayer(),bestComponent->getLayer())
-                || */ ( getArea(component) > getArea(bestComponent) ) ) {
-      bestComponent = component;
+                || */ ( getArea(*icomponent) > getArea(bestComponent) ) ) {
+      bestComponent = *icomponent;
     }
-    end_for
   }
-
   return bestComponent;
 }
 
 
-void  PlaceNet ( Net* net )
+bool  placeNet ( Net* net )
 {
-  assert ( net );
+  assert(net);
 
-  Component* bestComponent = getBestExternalComponent ( net );
+  if ( not net->isExternal() ) return false;
+  Component* bestComponent = getBestExternalComponent(net);
 
-  if ( bestComponent )
-    net->setPosition ( bestComponent->getCenter() );
-}
-
-
-void  PlaceNets ( Cell* cell )
-{
-  assert ( cell );
-
-  for_each_net ( net, cell->getExternalNets() ) {
-    PlaceNet ( net );
-    end_for
+  if ( bestComponent ) {
+    net->setPosition(bestComponent->getCenter());
+    return true;
   }
+  return false;
 }
 
 
-void  PlaceMasterNets ( const Library* library )
+void  placeNets ( Cell* cell )
+{
+  assert(cell);
+
+  UpdateSession::open();
+
+  vector<Net*> unplaceds;
+
+  forEach ( Net*, inet, cell->getExternalNets() ) {
+    if ( !placeNet(*inet) ) unplaceds.push_back(*inet);
+  }
+
+  Point abCenter = cell->getAbutmentBox().getCenter();
+  for ( size_t i=0 ; i<unplaceds.size() ; ++i ) {
+    unplaceds[i]->setPosition(abCenter);
+  }
+
+  UpdateSession::close();
+}
+
+
+void  placeMasterNets ( const Library* library )
 {
   assert ( library );
 
   for_each_cell ( cell, library->getCells() ) {
-    PlaceNets ( cell );
+    placeNets ( cell );
     end_for
   }
 }
 
 
-void PlacePlug (Plug* plug)
+void placePlug (Plug* plug)
 {
   assert ( plug );
 
-  PlaceNet ( plug->getMasterNet() );
+  placeNet ( plug->getMasterNet() );
 }
 
 
-void  PlacePlugs ( Cell* cell )
+void  placePlugs ( Cell* cell )
 {
   assert ( cell );
 
@@ -135,7 +143,7 @@ void  PlacePlugs ( Cell* cell )
 
   for_each_net ( net, cell->getNets() ) {
     for_each_plug ( plug, net->getPlugs() ) {
-      PlacePlug ( plug );
+      placePlug ( plug );
       end_for;
     }
     end_for