Index: src/components/org/apache/jmeter/visualizers/ViewResultsFullVisualizer.java
===================================================================
--- src/components/org/apache/jmeter/visualizers/ViewResultsFullVisualizer.java	(revision 1166194)
+++ src/components/org/apache/jmeter/visualizers/ViewResultsFullVisualizer.java	(working copy)
@@ -28,6 +28,8 @@
 import java.awt.Dimension;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
+import java.awt.event.ItemEvent;
+import java.awt.event.ItemListener;
 import java.io.IOException;
 import java.util.Collections;
 import java.util.List;
@@ -35,6 +37,7 @@
 import javax.swing.ComboBoxModel;
 import javax.swing.DefaultComboBoxModel;
 import javax.swing.ImageIcon;
+import javax.swing.JCheckBox;
 import javax.swing.JComboBox;
 import javax.swing.JScrollPane;
 import javax.swing.JSplitPane;
@@ -62,7 +65,7 @@
  *
  */
 public class ViewResultsFullVisualizer extends AbstractVisualizer
-implements ActionListener, TreeSelectionListener, Clearable {
+implements ActionListener, TreeSelectionListener, Clearable, ItemListener {
 
     private static final long serialVersionUID = 7338676747296593842L;
 
@@ -108,6 +111,7 @@
 
     private TreeSelectionEvent lastSelectionEvent;
 
+	private JCheckBox autoScrollCB;
     /**
      * Constructor
      */
@@ -144,7 +148,10 @@
         if (root.getChildCount() == 1) {
             jTree.expandPath(new TreePath(root));
         }
-    }
+		if (autoScrollCB.isSelected() && root.getChildCount() > 1) {
+			jTree.scrollRowToVisible(root.getChildCount() - 1);
+		}
+	}
 
     private void addSubResults(DefaultMutableTreeNode currNode, SampleResult res) {
         SampleResult[] subResults = res.getSubResults();
@@ -252,17 +259,35 @@
         jTree.addTreeSelectionListener(this);
         jTree.setRootVisible(false);
         jTree.setShowsRootHandles(true);
-
         JScrollPane treePane = new JScrollPane(jTree);
         treePane.setPreferredSize(new Dimension(200, 300));
 
-        VerticalPanel leftPane = new VerticalPanel();
-        leftPane.add(treePane, BorderLayout.CENTER);
-        leftPane.add(createComboRender(), BorderLayout.SOUTH);
+		VerticalPanel leftPane = new VerticalPanel();
+		leftPane.add(treePane, BorderLayout.CENTER);
 
-        return leftPane;
+		VerticalPanel leftDownPane = new VerticalPanel();
+		leftDownPane.add(createComboRender(), BorderLayout.NORTH);
+		autoScrollCB = createASCheckBox("view_results_autoscroll", Color.BLACK);
+		leftDownPane.add(autoScrollCB, BorderLayout.SOUTH);
+		leftPane.add(leftDownPane, BorderLayout.SOUTH);
+		return leftPane;
     }
 
+	/**
+	 * Create auto scroll checkbox
+	 * @param labelResourceName
+	 * @param color
+	 * @return {@link JCheckBox}
+	 */
+	private JCheckBox createASCheckBox(String labelResourceName, Color color) {
+		JCheckBox checkBox = new JCheckBox(JMeterUtils
+				.getResString(labelResourceName));
+		checkBox.setSelected(false);
+		checkBox.addItemListener(this);
+		checkBox.setForeground(color);
+		return checkBox;
+	}
+    
     /**
      * Create the drop-down list to changer render
      * @return List of all render (implement ResultsRender)
@@ -379,4 +404,10 @@
         }
     }
 
+	/**
+	 * Handler for Checkbox
+	 */
+	public void itemStateChanged(ItemEvent e) {
+		// NOOP state is held by component
+	}
 }
Index: src/components/org/apache/jmeter/visualizers/AssertionVisualizer.java
===================================================================
--- src/components/org/apache/jmeter/visualizers/AssertionVisualizer.java	(revision 1166194)
+++ src/components/org/apache/jmeter/visualizers/AssertionVisualizer.java	(working copy)
@@ -56,6 +56,7 @@
         sb.append("\n"); // $NON-NLS-1$
         synchronized (textArea) {
             textArea.append(sb.toString());
+			textArea.setCaretPosition(textArea.getText().length());
         }
     }