Index: Core/Code/Interactions/mitkDisplayInteractor.cpp
===================================================================
--- Core/Code/Interactions/mitkDisplayInteractor.cpp	(revision 21094)
+++ Core/Code/Interactions/mitkDisplayInteractor.cpp	(working copy)
@@ -77,12 +77,37 @@
         }
         
         //renderer->GetDisplayGeometry()->Zoom(factor, dcOperation->GetStartDisplayCoordinate());
+
+        
+        //TODO build a apropriate switch for turning this amazing feature on or off
+        typedef std::map< vtkRenderWindow *, int > RenderWindowList;
+        typedef std::vector< vtkRenderWindow* > RenderWindowVector;
+
+        RenderWindowVector::iterator it;
+        RenderWindowVector renderWindowList =  mitk::RenderingManager::GetInstance()->GetAllRegisteredRenderWindows();
+        for ( it = renderWindowList.begin(); it != renderWindowList.end(); ++it )
+        {
+          int id = BaseRenderer::GetInstance(*it)->GetMapperID();
+          if ( id == 1 )
+          {
+            Point2D center;
+
+            center[0] = BaseRenderer::GetInstance(*it)->GetDisplayGeometry()->GetDisplayWidth()/2;
+            center[1] = BaseRenderer::GetInstance(*it)->GetDisplayGeometry()->GetDisplayHeight()/2;
+            BaseRenderer::GetInstance(*it)->GetDisplayGeometry()->Zoom(factor, center);
+            mitk::RenderingManager::GetInstance()->RequestUpdate(BaseRenderer::GetInstance(*it)->GetRenderWindow());
+            ok = true;
+          }
+        }
+/*
         Point2D center;
+
         center[0] = renderer->GetDisplayGeometry()->GetDisplayWidth()/2;
         center[1] = renderer->GetDisplayGeometry()->GetDisplayHeight()/2;
         renderer->GetDisplayGeometry()->Zoom(factor, center);
         mitk::RenderingManager::GetInstance()->RequestUpdate(renderer->GetRenderWindow());
-        ok = true;
+        ok = true;*/
+
       }
       break;
     default: