diff --git a/source/SubWindowHandle.cpp b/source/SubWindowHandle.cpp
index 9119127..47281f8 100644
--- a/source/SubWindowHandle.cpp
+++ b/source/SubWindowHandle.cpp
@@ -109,6 +109,10 @@ bool SubWindowHandle::loadFile( const QString &fileName )
   return true;
 }
 
+/**
+ * Functions to enable a module in the
+ * current SubWindow
+ */
 Void SubWindowHandle::enableModule( PlaYUVerModuleIf* select_module )
 {
   m_pcCurrentModule = select_module;
@@ -116,16 +120,40 @@ Void SubWindowHandle::enableModule( PlaYUVerModuleIf* select_module )
   refreshFrame();
 }
 
+Void SubWindowHandle::disableModule()
+{
+  m_pcCurrentModule->destroy();
+  m_pcCurrentModule = NULL;
+  refreshFrame();
+}
+
+QImage* SubWindowHandle::FrameToQImage( PlaYUVerFrame* curr_frame )
+{
+  Pel*** bufferRGB = curr_frame->getPelBufferRGB();
+
+  curr_frame->YUV420toRGB();
+
+  for( Int y = 0; y < curr_frame->getHeight(); y++ )
+  {
+    for( Int x = 0; x < curr_frame->getWidth(); x++ )
+    {
+      m_pCurrFrameQImage->setPixel( x, y, qRgb( bufferRGB[0][y][x], bufferRGB[1][y][x], bufferRGB[2][y][x] ) );
+    }
+  }
+  return m_pCurrFrameQImage;
+}
+
 Void SubWindowHandle::refreshFrame()
 {
   if( m_pcCurrentModule )
   {
-    m_pcCurrentModule->process( m_pCurrStream->getFrame( m_pcCurrentModule->getModImage() ) );
+    FrameToQImage( m_pcCurrentModule->process( m_pCurrStream->getFrame( m_pcCurrentModule->getModImage() ) ) );
   }
   else
   {
-    m_cViewArea->setImage( QPixmap::fromImage( *( m_pCurrStream->getFrame( m_pCurrFrameQImage ) ) ) );
+    FrameToQImage( m_pCurrStream->getFrame( (PlaYUVerFrame*) NULL ) );
   }
+  m_cViewArea->setImage( QPixmap::fromImage( *m_pCurrFrameQImage ) );
 }
 
 bool SubWindowHandle::save()
diff --git a/source/SubWindowHandle.h b/source/SubWindowHandle.h
index 6423487..4d90f98 100644
--- a/source/SubWindowHandle.h
+++ b/source/SubWindowHandle.h
@@ -73,6 +73,7 @@ public:
   Void stopEvent();
   Void seekEvent( UInt new_frame_num );
 
+  QImage* FrameToQImage( PlaYUVerFrame* curr_frame );
   Void refreshFrame();
 
   InputStream* getInputStream()
@@ -81,10 +82,11 @@ public:
   }
 
   /**
-   * Function to enable a module in the
+   * Functions to enable a module in the
    * current SubWindow
    */
   Void enableModule( PlaYUVerModuleIf* select_module );
+  Void disableModule();
 
   /**
    * Show the image at its original size
diff --git a/source/modules/FilterFrame.cpp b/source/modules/FilterFrame.cpp
index 849af81..8aa66b3 100644
--- a/source/modules/FilterFrame.cpp
+++ b/source/modules/FilterFrame.cpp
@@ -48,7 +48,7 @@ PlaYUVerFrame* FilterFrame::process( PlaYUVerFrame* InputFrame )
       pppPelYUV[2][y][x] = 128;
     }
   }
-
+  m_pcFilteredFrame->YUV420toRGB();
   return m_pcFilteredFrame;
 }
 
diff --git a/source/plaYUVerApp.cpp b/source/plaYUVerApp.cpp
index b035590..9401a07 100644
--- a/source/plaYUVerApp.cpp
+++ b/source/plaYUVerApp.cpp
@@ -71,6 +71,8 @@ plaYUVerApp::plaYUVerApp()
 
   setAcceptDrops( true );
   mdiArea->setAcceptDrops( true );
+
+  m_pcCurrentSubWindow = NULL;
 }
 
 Void plaYUVerApp::closeEvent( QCloseEvent *event )
@@ -231,8 +233,12 @@ void plaYUVerApp::chageSubWindowSelection()
   playingTimer->stop();
   if( activeSubWindow() )
   {
+    if( m_pcCurrentSubWindow )
+      m_pcCurrentSubWindow->disableModule();
+
     m_pcFrameSlider->setMaximum( activeSubWindow()->getInputStream()->getFrameNum() - 1 );
     m_pcFrameSlider->setValue( activeSubWindow()->getInputStream()->getCurrFrameNum() );
+    m_pcCurrentSubWindow = activeSubWindow();
   }
   updateMenus();
   //updateWindowMenu();
diff --git a/source/plaYUVerApp.h b/source/plaYUVerApp.h
index a6c2ec0..a7b3705 100644
--- a/source/plaYUVerApp.h
+++ b/source/plaYUVerApp.h
@@ -92,6 +92,7 @@ private Q_SLOTS:
 
 private:
   QMdiArea *mdiArea;
+  SubWindowHandle *m_pcCurrentSubWindow;
   ModulesHandle *m_pcModulesHandle;
 
   QString m_cLastOpenPath;