--- a/Plugins/VcsPlugins/vcsMercurial/HgDiffDialog.py	Fri Jul 05 19:39:15 2013 +0200
+++ b/Plugins/VcsPlugins/vcsMercurial/HgDiffDialog.py	Sat Jul 06 15:48:58 2013 +0200
@@ -185,7 +185,7 @@
             self.process.setWorkingDirectory(repodir)
             
             self.process.start('hg', args)
-            procStarted = self.process.waitForStarted()
+            procStarted = self.process.waitForStarted(5000)
             if not procStarted:
                 QApplication.restoreOverrideCursor()
                 self.inputGroup.setEnabled(False)