diff --git a/openlp/core/lib/ui.py b/openlp/core/lib/ui.py
index a0686416c..b544efab9 100644
--- a/openlp/core/lib/ui.py
+++ b/openlp/core/lib/ui.py
@@ -323,7 +323,7 @@ def shortcut_action(parent, name, shortcuts, function, icon=None, checked=None,
     action.setShortcutContext(context)
     action_list = ActionList.get_instance()
     action_list.add_action(action, category)
-    QtCore.QObject.connect(action, QtCore.SIGNAL(u'triggered()'), function)
+    QtCore.QObject.connect(action, QtCore.SIGNAL(u'triggered(bool)'), function)
     return action
 
 def context_menu_action(base, icon, text, slot, shortcuts=None, category=None,
@@ -356,7 +356,7 @@ def context_menu_action(base, icon, text, slot, shortcuts=None, category=None,
     action = QtGui.QAction(text, base)
     if icon:
         action.setIcon(build_icon(icon))
-    QtCore.QObject.connect(action, QtCore.SIGNAL(u'triggered()'), slot)
+    QtCore.QObject.connect(action, QtCore.SIGNAL(u'triggered(bool)'), slot)
     if shortcuts is not None:
         action.setShortcuts(shortcuts)
         action.setShortcutContext(context)
diff --git a/openlp/core/ui/mainwindow.py b/openlp/core/ui/mainwindow.py
index d2fbaef9e..32a28d474 100644
--- a/openlp/core/ui/mainwindow.py
+++ b/openlp/core/ui/mainwindow.py
@@ -896,7 +896,7 @@ class MainWindow(QtGui.QMainWindow, Ui_MainWindow):
     def toggleThemeManager(self):
         self.themeManagerDock.setVisible(not self.themeManagerDock.isVisible())
 
-    def setPreviewPanelVisibility(self, visible=None):
+    def setPreviewPanelVisibility(self, visible):
         """
         Sets the visibility of the preview panel including saving the setting
         and updating the menu.
@@ -906,14 +906,12 @@ class MainWindow(QtGui.QMainWindow, Ui_MainWindow):
                 True - Visible
                 False - Hidden
         """
-        if visible is None:
-            visible = self.ViewPreviewPanel.isVisible()
         self.previewController.panel.setVisible(visible)
         QtCore.QSettings().setValue(u'user interface/preview panel',
             QtCore.QVariant(visible))
         self.ViewPreviewPanel.setChecked(visible)
 
-    def setLivePanelVisibility(self, visible=None):
+    def setLivePanelVisibility(self, visible):
         """
         Sets the visibility of the live panel including saving the setting and
         updating the menu.
@@ -923,8 +921,6 @@ class MainWindow(QtGui.QMainWindow, Ui_MainWindow):
                 True - Visible
                 False - Hidden
         """
-        if visible is None:
-            visible = self.ViewLivePanel.isVisible()
         self.liveController.panel.setVisible(visible)
         QtCore.QSettings().setValue(u'user interface/live panel',
             QtCore.QVariant(visible))
@@ -1011,4 +1007,4 @@ class MainWindow(QtGui.QMainWindow, Ui_MainWindow):
             self.recentFiles.insert(0, QtCore.QString(filename))
             while self.recentFiles.count() > maxRecentFiles:
                 # Don't care what API says takeLast works, removeLast doesn't!
-                self.recentFiles.takeLast()
\ No newline at end of file
+                self.recentFiles.takeLast()
diff --git a/openlp/core/ui/servicemanager.py b/openlp/core/ui/servicemanager.py
index 9de82dd82..40bd5e9d4 100644
--- a/openlp/core/ui/servicemanager.py
+++ b/openlp/core/ui/servicemanager.py
@@ -347,7 +347,8 @@ class ServiceManager(QtGui.QWidget):
         has been modified.
         """
         self._modified = modified
-        serviceFile = self.shortFileName() or u'Untitled Service'
+        serviceFile = self.shortFileName() or translate(
+            'OpenLP.ServiceManager', 'Untitled Service')
         self.mainwindow.setServiceModified(modified, serviceFile)
 
     def isModified(self):