diff --git a/Core/Code/Testing/mitkRenderingTestHelper.cpp b/Core/Code/Testing/mitkRenderingTestHelper.cpp
index bc95059cd6..d41f993c81 100644
--- a/Core/Code/Testing/mitkRenderingTestHelper.cpp
+++ b/Core/Code/Testing/mitkRenderingTestHelper.cpp
@@ -1,88 +1,88 @@
 /*=========================================================================
 
 Program:   Medical Imaging & Interaction Toolkit
 Language:  C++
 Date:      $Date: 2010-03-31 17:34:48 +0200 (Wed, 31 Mar 2010) $
 Version:   $Revision: 21985 $
 
 Copyright (c) German Cancer Research Center, Division of Medical and
 Biological Informatics. All rights reserved.
 See MITKCopyright.txt or http://www.mitk.org/copyright.html for details.
 
 This software is distributed WITHOUT ANY WARRANTY; without even
 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 PURPOSE.  See the above copyright notices for more information.
 
 =========================================================================*/
 
 #include "mitkRenderingTestHelper.h"
 #include "mitkStandaloneDataStorage.h"
 
 #include <vtkRenderWindow.h>
 #include <vtkPNGWriter.h>
 #include <vtkRenderLargeImage.h>
 #include <mitkRenderWindow.h>
 
 #include <mitkGlobalInteraction.h>
 #include <vtkRenderWindowInteractor.h>
 #include <mitkSliceNavigationController.h>
 #include <mitkNodePredicateDataType.h>
 #include <mitkLevelWindowProperty.h>
 
 mitkRenderingTestHelper::mitkRenderingTestHelper(int width, int height, mitk::DataStorage *ds)
 {
   // Global interaction must(!) be initialized
   mitk::GlobalInteraction::GetInstance()->Initialize("global");
 
   m_RenderWindow = mitk::RenderWindow::New();
   m_RenderWindow->GetRenderer()->SetDataStorage(ds);
   m_RenderWindow->GetRenderer()->SetMapperID(mitk::BaseRenderer::Standard2D);
   this->GetVtkRenderWindow()->SetSize( width, height );
 
   mitk::BaseRenderer::GetInstance(m_RenderWindow->GetVtkRenderWindow())->GetSliceNavigationController()->SetDefaultViewDirection(mitk::SliceNavigationController::Transversal);
   mitk::TimeSlicedGeometry::Pointer geo = ds->ComputeBoundingGeometry3D(ds->GetAll());
 
   //Level Window Property
 //  ds->GetNode(mitk::NodePredicateDataType::New("Image"))->SetProperty( "levelwindow", mitk::LevelWindowProperty::New( mitk::LevelWindow(254.0, 1.0) ) );
 
   mitk::RenderingManager::GetInstance()->InitializeViews( geo );
-  mitk::RenderingManager::GetInstance()->ForceImmediateUpdate(m_RenderWindow->GetVtkRenderWindow());
+  mitk::RenderingManager::GetInstance()->RequestUpdate(m_RenderWindow->GetVtkRenderWindow());
 
 //use this to actually show the iamge in a renderwindow
 //  this->GetVtkRenderWindow()->Render();
 //  this->GetVtkRenderWindow()->GetInteractor()->Start();
 }
 
 mitkRenderingTestHelper::~mitkRenderingTestHelper()
 {
 }
 
 vtkRenderer* mitkRenderingTestHelper::GetVtkRenderer()
 {
   return m_RenderWindow->GetRenderer()->GetVtkRenderer();
 }
 
 vtkRenderWindow* mitkRenderingTestHelper::GetVtkRenderWindow()
 {
   return m_RenderWindow->GetVtkRenderWindow();
 }
 
 //method to save a screenshot of the renderwindow (e.g. create a reference screenshot)
 void mitkRenderingTestHelper::SaveAsPNG(std::string fileName)
 {
   vtkSmartPointer<vtkRenderer> renderer = this->GetVtkRenderer();
   bool doubleBuffering( renderer->GetRenderWindow()->GetDoubleBuffer() );
   renderer->GetRenderWindow()->DoubleBufferOff();
 
   vtkSmartPointer<vtkRenderLargeImage> magnifier = vtkSmartPointer<vtkRenderLargeImage>::New();
   magnifier->SetInput(renderer);
   magnifier->SetMagnification(1.0);
 
   vtkSmartPointer<vtkImageWriter> fileWriter = vtkSmartPointer<vtkPNGWriter>::New();
   fileWriter->SetInput(magnifier->GetOutput());
   fileWriter->SetFileName(fileName.c_str());
 
   fileWriter->Write();
   renderer->GetRenderWindow()->SetDoubleBuffer(doubleBuffering);
 }