--- a/Plugins/VcsPlugins/vcsMercurial/HgDiffDialog.py	Sat Feb 05 14:21:37 2011 +0100
+++ b/Plugins/VcsPlugins/vcsMercurial/HgDiffDialog.py	Sat Feb 05 16:32:34 2011 +0100
@@ -269,7 +269,8 @@
             fname,
             self.trUtf8("Patch Files (*.diff)"),
             None,
-            QFileDialog.Options(QFileDialog.DontConfirmOverwrite))
+            QFileDialog.Options(QFileDialog.DontConfirmOverwrite |
+                                QFileDialog.DontUseNativeDialog))
         
         if not fname:
             return  # user aborted