--- a/src/viewer_swing/java/com/glavsoft/viewer/UiSettings.java	Fri Jun 17 09:26:42 2016 +0900
+++ b/src/viewer_swing/java/com/glavsoft/viewer/UiSettings.java	Fri Jun 17 10:39:39 2016 +0900
@@ -197,7 +197,7 @@
                 '}';
     }
 
-    public void fitScreen(int thisScreenWidth, int thisScreenHeight, int singleWidth, int singleHeight) {
+    public double fitScreen(int thisScreenWidth, int thisScreenHeight, int singleWidth, int singleHeight) {
         double doubleThisWidth = (double) thisScreenWidth;
         double doubleThisHeight = (double) thisScreenHeight;
         double widthScale = (doubleThisWidth/singleWidth);
@@ -215,5 +215,6 @@
         }
         setScalePercent(scaleFactor);
         fireListeners();
+        return scaleFactor;
     }
 }

--- a/src/viewer_swing/java/com/glavsoft/viewer/swing/SwingViewerWindow.java	Fri Jun 17 09:26:42 2016 +0900
+++ b/src/viewer_swing/java/com/glavsoft/viewer/swing/SwingViewerWindow.java	Fri Jun 17 10:39:39 2016 +0900
@@ -983,41 +983,46 @@
 
         // find which screen we are on
         Point thisScreenLocation = frame.getLocation();
-        int leftScreenNumber = 0;
+        int thisScreenNumber = 0;
         for(Rectangle rect : rectangles) {
             if ( rect.contains(thisScreenLocation) ) break;
-            leftScreenNumber++;
+            thisScreenNumber++;
         }
-        int thisScreenWidth = (int) rectangles.get(leftScreenNumber).getWidth();
-        int thisScreenHeight = (int) rectangles.get(leftScreenNumber).getHeight();
-
+        int thisScreenWidth = (int) rectangles.get(thisScreenNumber).getWidth();
+        int thisScreenHeight = (int) rectangles.get(thisScreenNumber).getHeight();
+        int thisRetinaScale = retinaScale(thisScreenNumber);
 
         final int thatScreenX = presenter.getX();
         final int thatScreenY = presenter.getY();
-        final int thatScreenWidth = presenter.getFrameSizeWidth()*presenter.getRetinaScale();
-        final int thatScreenHeight = presenter.getFrameSizeHeight()*presenter.getRetinaScale();
-            System.out.println("thatScreenX:" + thatScreenX);
-            System.out.println("thatScreenY:" + thatScreenY);
-            System.out.println("thisScreenWidth:" + thisScreenWidth);
-            System.out.println("thisScreenHeight:" + thisScreenHeight);
-            System.out.println("thatScreenWidth:" + thatScreenWidth);
-            System.out.println("thatScreenHeight:" + thatScreenHeight);
-            System.out.println("getMaximum:" + scroller.getHorizontalScrollBar().getMaximum());
-            System.out.println("getMinmum:" + scroller.getHorizontalScrollBar().getMinimum());
+        int thatRetinaScale = presenter.getRetinaScale();
+        final int thatScreenWidth = presenter.getFrameSizeWidth()* thatRetinaScale;
+        final int thatScreenHeight = presenter.getFrameSizeHeight()* thatRetinaScale;
+        showScreenInfo("that", 0, thatScreenX, thatScreenY, thatScreenWidth, thatScreenHeight, thatRetinaScale);
 
         frame.setSize(thisScreenWidth, thisScreenHeight);
-        uiSettings.fitScreen(thisScreenWidth, thisScreenHeight, thatScreenWidth, thatScreenHeight);
+        final double scale = uiSettings.fitScreen(thisScreenWidth, thisScreenHeight, thatScreenWidth, thatScreenHeight);
         // final Rectangle visible = new Rectangle(thatScreenX,thatScreenY,thatScreenWidth,thatScreenHeight);
-        final double scale = (double)thisScreenWidth/(double)thatScreenWidth;
-        SwingUtilities.invokeLater(new Runnable(){
+        showScreenInfo("this", thisScreenNumber, 0, 0,thisScreenWidth, thisScreenHeight, thisRetinaScale);
+        System.out.println("thisScrollScale: " + scale);
+        SwingUtilities.invokeLater(new Runnable() {
             public void run() {
-                scroller.getHorizontalScrollBar().setValue((int)(thatScreenX*scale));
-                scroller.getVerticalScrollBar().setValue((int)(thatScreenY*scale));
-                // scroller.scrollRectToVisible(visible); this does not work
+                scroller.getHorizontalScrollBar().setValue((int) (thatScreenX * scale));
+                scroller.getVerticalScrollBar().setValue((int) (thatScreenY * scale));
+                // scroller.scrollRectToVisible(visible); // this does not work
             }
         });
     }
 
+    private void showScreenInfo(String name, int thisScreenNumber,int thisScreenX, int thisScreenY, int thisScreenWidth, int thisScreenHeight, int retinaScale) {
+        System.out.println(name + "RetinaScale:" + retinaScale);
+        System.out.println(name + "Screen:" + thisScreenNumber);
+        System.out.println(name + "ScreenX:" + thisScreenX);
+        System.out.println(name + "ScreenY:" + thisScreenY);
+        System.out.println(name + "ScreenWidth:" + thisScreenWidth);
+        System.out.println(name + "SreenHeight:" + thisScreenHeight);
+        System.out.println();
+    }
+
     private void sendCtrlAltDel(ProtocolContext context) {
         context.sendMessage(new KeyEventMessage(Keymap.K_CTRL_LEFT, true));
         context.sendMessage(new KeyEventMessage(Keymap.K_ALT_LEFT, true));