diff -r e3dc802965d6 -r e6ce1a337e0f QTfrontend/ui/page/pagetraining.cpp
--- a/QTfrontend/ui/page/pagetraining.cpp	Fri Sep 30 12:55:04 2011 +0200
+++ b/QTfrontend/ui/page/pagetraining.cpp	Fri Sep 30 17:04:20 2011 +0200
@@ -205,7 +205,7 @@
         QString thumbFile = datadir->absolutePath() +
                     "/Graphics/Missions/Training/" +
                     lstMissions->currentItem()->data(Qt::UserRole).toString() +
-                    ".png";
+                    "@2x.png";
 
         if (QFile::exists(thumbFile))
             btnPreview->setIcon(QIcon(thumbFile));