diff --git a/diylc/diylc-library/lib/diylc-core.jar b/diylc/diylc-library/lib/diylc-core.jar
index d60073aa..eb2e6cb1 100644
Binary files a/diylc/diylc-library/lib/diylc-core.jar and b/diylc/diylc-library/lib/diylc-core.jar differ
diff --git a/diylc/diylc-library/src/org/diylc/components/transform/ClosedJackTransformer.java b/diylc/diylc-library/src/org/diylc/components/transform/ClosedJackTransformer.java
new file mode 100644
index 00000000..8fecd439
--- /dev/null
+++ b/diylc/diylc-library/src/org/diylc/components/transform/ClosedJackTransformer.java
@@ -0,0 +1,103 @@
+package org.diylc.components.transform;
+
+import java.awt.Point;
+import java.awt.geom.AffineTransform;
+
+import org.diylc.common.IComponentTransformer;
+import org.diylc.common.Orientation;
+import org.diylc.components.electromechanical.ClosedJack1_4;
+import org.diylc.core.IDIYComponent;
+
+public class ClosedJackTransformer implements IComponentTransformer {
+
+  @Override
+  public boolean canRotate(IDIYComponent<?> component) {
+    return component.getClass().equals(ClosedJack1_4.class);
+  }
+
+  @Override
+  public boolean canMirror(IDIYComponent<?> component) {
+    return component.getClass().equals(ClosedJack1_4.class);
+  }
+
+  @Override
+  public boolean mirroringChangesCircuit() {
+    return true;
+  }
+
+  @Override
+  public void rotate(IDIYComponent<?> component, Point center, int direction) {
+    AffineTransform rotate = AffineTransform.getRotateInstance(Math.PI / 2 * direction, center.x, center.y);
+    for (int index = 0; index < component.getControlPointCount(); index++) {
+      Point p = new Point(component.getControlPoint(index));
+      rotate.transform(p, p);
+      component.setControlPoint(p, index);
+    }
+
+    ClosedJack1_4 jack = (ClosedJack1_4) component;
+    Orientation o = jack.getOrientation();
+    int oValue = o.ordinal();
+    oValue += direction;
+    if (oValue < 0)
+      oValue = Orientation.values().length - 1;
+    if (oValue >= Orientation.values().length)
+      oValue = 0;
+    o = Orientation.values()[oValue];
+    jack.setOrientation(o);
+  }
+
+  @Override
+  public void mirror(IDIYComponent<?> component, Point center, int direction) {
+    ClosedJack1_4 jack = (ClosedJack1_4) component;
+
+    if (direction == IComponentTransformer.HORIZONTAL) {
+      int dx = 2 * (center.x - jack.getControlPoint(0).x);
+      int dy = 0;
+
+      Orientation o = jack.getOrientation();
+      switch (o) {
+        case DEFAULT:
+          o = Orientation._180;
+          break;
+        case _90:
+          break;
+        case _180:
+          o = Orientation.DEFAULT;
+          break;
+        case _270: 
+          break;
+      }
+
+      for (int i = 0; i < jack.getControlPointCount(); i++) {
+        Point p = jack.getControlPoint(i);
+        jack.setControlPoint(new Point(p.x + dx, p.y + dy), i);
+      }
+
+      jack.setOrientation(o);
+    } else {
+      int dx = 0;
+      int dy = 2 * (center.y - jack.getControlPoint(0).y);
+
+      Orientation o = jack.getOrientation();
+      switch (o) {
+        case DEFAULT:
+          break;
+        case _90:
+          o = Orientation._270;
+          break;
+        case _180:
+          break;
+        case _270:
+          o = Orientation._90;
+          break;
+      }
+
+      for (int i = 0; i < jack.getControlPointCount(); i++) {
+        Point p = jack.getControlPoint(i);
+        jack.setControlPoint(new Point(p.x + dx, p.y + dy), i);
+      }
+
+      jack.setOrientation(o);
+    }
+  }
+}
diff --git a/diylc/diylc-swing/lib/diylc-core.jar b/diylc/diylc-swing/lib/diylc-core.jar
index d60073aa..eb2e6cb1 100644
Binary files a/diylc/diylc-swing/lib/diylc-core.jar and b/diylc/diylc-swing/lib/diylc-core.jar differ
diff --git a/diylc/diylc-swing/library/main.jar b/diylc/diylc-swing/library/main.jar
index 0b3606e9..4055b5c0 100644
Binary files a/diylc/diylc-swing/library/main.jar and b/diylc/diylc-swing/library/main.jar differ
diff --git a/diylc/diylc-swing/src/org/diylc/swing/plugins/canvas/CanvasPanel.java b/diylc/diylc-swing/src/org/diylc/swing/plugins/canvas/CanvasPanel.java
index b0558b22..5a789c7c 100644
--- a/diylc/diylc-swing/src/org/diylc/swing/plugins/canvas/CanvasPanel.java
+++ b/diylc/diylc-swing/src/org/diylc/swing/plugins/canvas/CanvasPanel.java
@@ -117,7 +117,7 @@ public class CanvasPanel extends JComponent implements Autoscroll {
     if (ConfigurationManager.getInstance().readBoolean(IPlugInPort.OUTLINE_KEY, false)) {
       drawOptions.add(DrawOption.OUTLINE_MODE);
     }
-    if (ConfigurationManager.getInstance().readBoolean(IPlugInPort.SHOW_GRID_KEY, false)) {
+    if (ConfigurationManager.getInstance().readBoolean(IPlugInPort.SHOW_GRID_KEY, true)) {
       drawOptions.add(DrawOption.GRID);
     }
     plugInPort.draw(g2d, drawOptions, null);