diff -p -up monster-masher-1.8/src/main-window.cpp~ monster-masher-1.8/src/main-window.cpp
--- monster-masher-1.8/src/main-window.cpp~	2005-10-09 13:43:28.000000000 +0200
+++ monster-masher-1.8/src/main-window.cpp	2008-09-03 18:29:10.000000000 +0200
@@ -395,6 +395,16 @@ void MainWindow::on_quit_activated()
   window->hide();
 }
 
+void MainWindow::on_about_dialog_response(int response_id)
+{
+  if((response_id == Gtk::RESPONSE_CLOSE) ||
+     (response_id == Gtk::RESPONSE_CANCEL) )
+    {
+      about->hide();
+    }
+}
+
+
 void MainWindow::on_about_activated()
 {
   std::vector<Glib::ustring> authors;
@@ -422,6 +432,8 @@ void MainWindow::on_about_activated()
     about->set_translator_credits(_("translator-credits"));
     about->set_logo(icon);
     about->set_icon(icon);
+    about->signal_response().connect(sigc::mem_fun(*this, &MainWindow::on_about_dialog_response) );
+
     about->show();
   }
   else {
diff -p -up monster-masher-1.8/src/main-window.hpp~ monster-masher-1.8/src/main-window.hpp
--- monster-masher-1.8/src/main-window.hpp~	2005-10-09 13:45:07.000000000 +0200
+++ monster-masher-1.8/src/main-window.hpp	2008-09-03 17:56:01.000000000 +0200
@@ -97,6 +97,7 @@ private:
   void on_introduction_activated();
   void on_preferences_activated();
   void on_about_activated();
+  void on_about_dialog_response(int response_id);
   void on_quit_activated();
 
   // callbacks for game menu