--- a/Plugins/VcsPlugins/vcsMercurial/HgLogBrowserDialog.py	Tue Aug 30 18:18:45 2011 +0200
+++ b/Plugins/VcsPlugins/vcsMercurial/HgLogBrowserDialog.py	Tue Aug 30 18:19:32 2011 +0200
@@ -672,6 +672,7 @@
             procStarted = self.process.waitForStarted()
             if not procStarted:
                 self.inputGroup.setEnabled(False)
+                self.inputGroup.hide()
                 E5MessageBox.critical(self,
                     self.trUtf8('Process Generation Error'),
                     self.trUtf8(