diff --git a/openlp/core/ui/generaltab.py b/openlp/core/ui/generaltab.py
index 065c95a45..a851ef67f 100644
--- a/openlp/core/ui/generaltab.py
+++ b/openlp/core/ui/generaltab.py
@@ -447,8 +447,13 @@ class GeneralTab(SettingsTab):
             self.screens.set_current_display(self.monitorNumber)
             Receiver.send_message(u'config_screen_changed')
         Receiver.send_message(u'config_updated')
+        # On save update the screens as well
+        self.postSetUp()
 
     def postSetUp(self):
+        """
+        Reset screens after initial definition
+        """
         self.screens.override[u'size'] = QtCore.QRect(
             int(self.customXValueEdit.text()),
             int(self.customYValueEdit.text()),
@@ -461,6 +466,9 @@ class GeneralTab(SettingsTab):
             self.screens.reset_current_display()
 
     def onOverrideCheckBoxToggled(self, checked):
+        """
+        Toggle screen state depending on check box state
+        """
         self.customXValueEdit.setEnabled(checked)
         self.customYValueEdit.setEnabled(checked)
         self.customHeightValueEdit.setEnabled(checked)
diff --git a/openlp/core/ui/maindisplay.py b/openlp/core/ui/maindisplay.py
index c5df04cd4..ee6336a93 100644
--- a/openlp/core/ui/maindisplay.py
+++ b/openlp/core/ui/maindisplay.py
@@ -360,7 +360,7 @@ class MainDisplay(DisplayWidget):
         if mode != HideMode.Screen and self.isHidden():
             self.setVisible(True)
 
-    def showDisplay(self, message=u''):
+    def showDisplay(self):
         """
         Show the stored layers so the screen reappears as it was
         originally.