From bf42f7c9e976cb7c996a2feca7af8e7f00e757a4 Mon Sep 17 00:00:00 2001
From: otya128 <otya128@users.noreply.github.com>
Date: Mon, 12 Dec 2016 20:01:37 +0900
Subject: [PATCH] (2)

---
 SMILEBASIC/graphic.d | 1 +
 1 file changed, 1 insertion(+)

diff --git a/SMILEBASIC/graphic.d b/SMILEBASIC/graphic.d
index 89cab86..80b55f8 100644
--- a/SMILEBASIC/graphic.d
+++ b/SMILEBASIC/graphic.d
@@ -435,6 +435,7 @@ class Graphic
                 {
                     i.deleteGL;
                 }
+                oldGRP = null;
             }
             initGLGraphicPages();
         }