Index: /trunk/src/VBox/Frontends/VirtualBox/src/VBoxSnapshotDetailsDlg.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/VBoxSnapshotDetailsDlg.cpp	(revision 24734)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/VBoxSnapshotDetailsDlg.cpp	(revision 24735)
@@ -70,5 +70,5 @@
     ULONG width = 0, height = 0;
     QVector <BYTE> data = machine.ReadSavedThumbnailToArray (true, width, height);
-    mThumbnail = data.size() != 0 ? QPixmap::fromImage (QImage (data.data(), width, height, QImage::Format_RGB32)) : QPixmap();
+    mThumbnail = data.size() != 0 ? QPixmap::fromImage (QImage (data.data(), width, height, QImage::Format_RGB32).copy()) : QPixmap();
     QGridLayout *lt = qobject_cast <QGridLayout*> (layout());
     Assert (lt);