--- a/Main_Window.cpp	2011-07-26 15:30:16.000000000 -0400
+++ b/Main_Window.cpp	2016-02-24 06:46:46.000000000 -0500
@@ -213,7 +213,7 @@
 	if( ! Save_Settings() )
 	{
 		AQGraphic_Error( "void Main_Window::closeEvent( QCloseEvent *event )",
-						 tr("Cannot Save Settings!"), false );
+						 tr("Cannot Save Settings!"), NULL );
 	}
 	else
 	{