diff -r 60bb012f1157 -r 9e8b0cc88842 imagehandlingutilities/thumbnailmanager/plugins/image/src/thumbnailimagedecoder.cpp
--- a/imagehandlingutilities/thumbnailmanager/plugins/image/src/thumbnailimagedecoder.cpp	Wed Sep 15 12:32:44 2010 +0300
+++ b/imagehandlingutilities/thumbnailmanager/plugins/image/src/thumbnailimagedecoder.cpp	Wed Oct 13 14:53:56 2010 +0300
@@ -377,12 +377,12 @@
         if ( aFlags == CThumbnailManager::EOptimizeForQuality )
             {
             options = ( CImageDecoder::TOptions )( CImageDecoder
-                ::EOptionNoDither );
+                ::EOptionNoDither | CImageDecoder::EOptionAlwaysThread );
             }
         else
             {
             options  = ( CImageDecoder::TOptions )( CImageDecoder
-                ::EOptionNoDither | CImageDecoder::EPreferFastDecode );
+                ::EOptionNoDither | CImageDecoder::EPreferFastDecode | CImageDecoder::EOptionAlwaysThread );
             }
 
         if ( IsSvg())
@@ -576,12 +576,12 @@
     CImageDecoder::TOptions options;
     if ( aFlags == CThumbnailManager::EOptimizeForQuality )
         {
-        options = ( CImageDecoder::TOptions )( CImageDecoder::EOptionNoDither );
+        options = ( CImageDecoder::TOptions )( CImageDecoder::EOptionNoDither | CImageDecoder::EOptionAlwaysThread );
         }
     else
         {
         options = ( CImageDecoder::TOptions )( CImageDecoder::EOptionNoDither |
-            CImageDecoder::EPreferFastDecode  );
+            CImageDecoder::EPreferFastDecode | CImageDecoder::EOptionAlwaysThread );
         }
 
     TRAPD( err, iDecoder = CExtJpegDecoder::DataNewL( iFs, * iExifThumbImage, options ));