Disabled more stuff in case "No joystick" is selected.

src/pc.c

@@ -463,7 +463,7 @@ void runpc()
                 keyboard_process();
 //                checkkeys();
                 pollmouse();
-                joystick_poll();
+                if (joystick_type != 7)  joystick_poll();
         endblit();
 
                 framecountx++;

src/win-config.c

@@ -425,7 +425,7 @@ static BOOL CALLBACK config_dlgproc(HWND hdlg, UINT message, WPARAM wParam, LPAR
                         speedchanged();
 
                         joystick_type = temp_joystick_type;
-                        gameport_update_joystick_type();
+                        if (joystick_type != 7)  gameport_update_joystick_type();
 
                         case IDCANCEL:
                         EndDialog(hdlg, 0);

src/win-joystick.cc

@@ -91,6 +91,8 @@ void joystick_init()
 {
         int c;
 
+	if (joystick_type == 7)  return;
+
         atexit(joystick_close);
         
         joysticks_present = 0;