diff --git a/Modules/IGTUI/Qmitk/QmitkNavigationDataPlayerControlWidget.cpp b/Modules/IGTUI/Qmitk/QmitkNavigationDataPlayerControlWidget.cpp
index 356eb8416f..65fb8346d2 100644
--- a/Modules/IGTUI/Qmitk/QmitkNavigationDataPlayerControlWidget.cpp
+++ b/Modules/IGTUI/Qmitk/QmitkNavigationDataPlayerControlWidget.cpp
@@ -1,108 +1,111 @@
 /*===================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center,
 Division of Medical and Biological Informatics.
 All rights reserved.
 
 This software is distributed WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.
 
 See LICENSE.txt or http://www.mitk.org for details.
 
 ===================================================================*/
 
 #include "QmitkNavigationDataPlayerControlWidget.h"
 #include "ui_QmitkNavigationDataPlayerControlWidget.h"
 
 #include <QTimer>
 
 QmitkNavigationDataPlayerControlWidget::QmitkNavigationDataPlayerControlWidget(QWidget *parent) :
   QWidget(parent),
   m_UpdateTimer(new QTimer(this)),
   ui(new Ui::QmitkNavigationDataPlayerControlWidget)
 {
   ui->setupUi(this);
 
   connect(m_UpdateTimer, SIGNAL(timeout()), this, SLOT(OnUpdate()));
 }
 
 QmitkNavigationDataPlayerControlWidget::~QmitkNavigationDataPlayerControlWidget()
 {
   delete ui;
 }
 
 void QmitkNavigationDataPlayerControlWidget::SetPlayer(mitk::NavigationDataPlayer::Pointer player)
 {
   m_Player = player;
 
   ui->samplePositionHorizontalSlider->setMaximum(player->GetNumberOfSnapshots()-1);
 }
 
 void QmitkNavigationDataPlayerControlWidget::OnStop()
 {
   m_UpdateTimer->stop();
   m_Player->StopPlaying();
 
   ui->playPushButton->setChecked(false);
 
   this->OnUpdate();
 }
 
 void QmitkNavigationDataPlayerControlWidget::OnPlayPause()
 {
   switch ( m_Player->GetCurrentPlayerState() )
   {
   case mitk::NavigationDataPlayer::PlayerStopped:
   {
     m_Player->StartPlaying();
     if ( ! m_UpdateTimer->isActive() ) { m_UpdateTimer->start(10); }
+    break;
   }
   case mitk::NavigationDataPlayer::PlayerPaused:
   {
-    m_Player->Pause();
+    m_Player->Resume();
+    break;
   }
   case mitk::NavigationDataPlayer::PlayerRunning:
   {
-    m_Player->Resume();
+    m_Player->Pause();
+    break;
   }
   }
 }
 
 void QmitkNavigationDataPlayerControlWidget::OnRestart()
 {
   m_Player->StopPlaying();
   m_Player->StartPlaying();
 }
 
 void QmitkNavigationDataPlayerControlWidget::OnUpdate()
 {
   m_Player->Update();
 
   int msc = static_cast<int>(m_Player->GetTimeStampSinceStart());
 
   // calculation for playing time display
   int ms = msc % 1000;
   msc = (msc - ms) / 1000;
   int s = msc % 60;
   int min = (msc-s) / 60;
 
   // set lcd numbers
   ui->msecLCDNumber->display(ms);
   ui->secLCDNumber->display(s);
   ui->minLCDNumber->display(min);
 
   ui->samplePositionHorizontalSlider->setValue(static_cast<int>(m_Player->GetCurrentSnapshotNumber()));
 
   emit SignalUpdate();
 
   if ( m_Player->GetCurrentPlayerState() == mitk::NavigationDataPlayer::PlayerStopped )
   {
     m_UpdateTimer->stop();
     ui->playPushButton->setChecked(false);
 
     emit SignalEndReached();
   }
 }