diff --git a/src/main/java/cit/PureATN/DPenReceiver.java b/src/main/java/cit/PureATN/DPenReceiver.java
index e0cd6f6..6d0685f 100644
--- a/src/main/java/cit/PureATN/DPenReceiver.java
+++ b/src/main/java/cit/PureATN/DPenReceiver.java
@@ -62,7 +62,7 @@
 			String pen = ints[2];
 			String penid = convertPenSerial2PenID.get(pen);
 			if (penid != null) pen = penid;
-			PenUser.press(penid, Integer.parseInt(ints[1])); // 1 press, 0 up
+			PenUser.press(penid, Integer.parseInt(ints[1]), true); // 1 press, 0 up
 		} else {
 			int x1 = Integer.parseInt(ints[2]);
 			int y1 = Integer.parseInt(ints[3]);
diff --git a/src/main/java/cit/PureATN/MultiNote/MultiNote.java b/src/main/java/cit/PureATN/MultiNote/MultiNote.java
index 998f2ae..f812047 100644
--- a/src/main/java/cit/PureATN/MultiNote/MultiNote.java
+++ b/src/main/java/cit/PureATN/MultiNote/MultiNote.java
@@ -16,7 +16,6 @@
 import org.josql.QueryResults;
 import org.piccolo2d.PCanvas;
 import org.piccolo2d.PLayer;
-import org.piccolo2d.PNode;
 import org.piccolo2d.activities.PTransformActivity;
 import org.piccolo2d.nodes.PPath;
 import org.piccolo2d.util.PBounds;
@@ -36,7 +35,7 @@
     public MultiNote(final PCanvas aCanvas) {
         super(aCanvas);
         int width = 1000;
-        int height = (int) (width * 1.414);
+        int height = (int) (width / 1.414);
         setSize(width, height);
         setLocation(100, 200);
 
diff --git a/src/main/java/cit/PureATN/Note.java b/src/main/java/cit/PureATN/Note.java
index a5bf9ba..04e3111 100644
--- a/src/main/java/cit/PureATN/Note.java
+++ b/src/main/java/cit/PureATN/Note.java
@@ -100,7 +100,7 @@
                 if (pressPN instanceof PCamera) {
 
                     String mousePenIDStr = "pen0" + mousePenID;
-                    PenUser.press(mousePenIDStr, 1);
+                    PenUser.press(mousePenIDStr, 1, false);
 
                     final Point2D p = e.getPosition();
                     // squiggle = new ShortStroke();
@@ -126,7 +126,7 @@
                     updateSquiggle(e);
 
                     String mousePenIDStr = "pen0" + mousePenID;
-                    PenUser.press(mousePenIDStr, 0);
+                    PenUser.press(mousePenIDStr, 0, false);
                 }
             }
 
diff --git a/src/main/java/cit/PureATN/PenUser.java b/src/main/java/cit/PureATN/PenUser.java
index 7788878..5790414 100644
--- a/src/main/java/cit/PureATN/PenUser.java
+++ b/src/main/java/cit/PureATN/PenUser.java
@@ -65,9 +65,9 @@
 		pu.add(x, y);
 	}
 
-	public static void press(String penid, int phase) {
+	public static void press(String penid, int phase, boolean realPen) {
 		PenUser pu = PenUser.find(penid);
-		pu.press(phase);
+		pu.press(phase, realPen);
 	}
 
 	public static void drawAll(Graphics g) {
@@ -200,7 +200,7 @@
 
 	}
 
-	public void press(int ph) {
+	public void press(int ph, boolean realPen) {
 		System.out.println("press " + ph);
 		if (ph == 0) {
 			if (graphicsMode == GraphicsMode.AWT) {
@@ -218,6 +218,7 @@
 				}
 				strokes.add(squiggle);
 				squiggle.penid = num; // 整数型のPenID
+				squiggle.isRealPen = realPen;
 				squiggle.endDrag_on_draw(); // 筆記確定後の仕上げをする
 				squiggle = null;
 			}
diff --git a/src/main/java/cit/PureATN/ShortStroke.java b/src/main/java/cit/PureATN/ShortStroke.java
index 0f30599..08f7555 100644
--- a/src/main/java/cit/PureATN/ShortStroke.java
+++ b/src/main/java/cit/PureATN/ShortStroke.java
@@ -17,7 +17,6 @@
 import org.piccolo2d.activities.PActivity;
 import org.piccolo2d.nodes.PPath;
 import org.piccolo2d.util.PBounds;
-import org.piccolo2d.util.PDimension;
 
 import cit.PureATN.MultiNote.MultiNote;
 
@@ -41,6 +40,7 @@
 	public int penid;//ペンのID
 	// public int paperid;//シートのID
 	public long time;
+	public boolean isRealPen = false; //マウス描画ならfalse
 	// public int sbackid;
 
 	public transient long id;
@@ -145,7 +145,9 @@
 			PPath theShitajiki = mn.shitajikiNodes[penid];
 			if (theShitajiki != null){
 				Point2D offset = theShitajiki.getOffset();
-				move((float)-offset.getX(), (float)-offset.getY());
+				if (!this.isRealPen) { //マウス描画のときは、下敷きのオフセットにあわせる
+					move((float)-offset.getX(), (float)-offset.getY());
+				}
 				theShitajiki.addChild(this);
 			}
 		}