diff --git a/designer-base/src/com/fr/design/file/HistoryTemplateListPane.java b/designer-base/src/com/fr/design/file/HistoryTemplateListPane.java
index 3fc3f1d72..4974e53e4 100644
--- a/designer-base/src/com/fr/design/file/HistoryTemplateListPane.java
+++ b/designer-base/src/com/fr/design/file/HistoryTemplateListPane.java
@@ -43,18 +43,22 @@ public class HistoryTemplateListPane extends JPanel implements FileOperations, C
     private JTemplate<?, ?> editingTemplate;
     private FileToolbarStateChangeListener toobarStateChangeListener;
 
-    private static HistoryTemplateListPane THIS;
+    private static volatile HistoryTemplateListPane THIS;
 
     private UIList list;
 
     public static final HistoryTemplateListPane getInstance() {
         if (THIS == null) {
-            THIS = new HistoryTemplateListPane();
+            synchronized (HistoryTemplateListPane.class) {
+                if (THIS == null) {
+                    THIS = new HistoryTemplateListPane();
+                }
+            }
         }
         return THIS;
     }
 
-    public HistoryTemplateListPane() {
+    private HistoryTemplateListPane() {
         setLayout(new BorderLayout());
         historyList = new ArrayList<JTemplate<?, ?>>();
         list = new UIList(new HistoryListDataMode()) {
diff --git a/designer-base/src/com/fr/design/gui/iprogressbar/ProgressDialog.java b/designer-base/src/com/fr/design/gui/iprogressbar/ProgressDialog.java
index dab3a2e02..f5a1c3c77 100644
--- a/designer-base/src/com/fr/design/gui/iprogressbar/ProgressDialog.java
+++ b/designer-base/src/com/fr/design/gui/iprogressbar/ProgressDialog.java
@@ -52,6 +52,7 @@ public class ProgressDialog extends UIDialog {
         FRFont font = FRFont.getInstance().applySize(14).applyForeground(new ColorUIResource(333334));
         text.setFont(font);
         panel.add(text, BorderLayout.SOUTH);
+        panel.setVisible(true);
         centerDialog.getContentPane().add(panel);
 
     }
@@ -63,9 +64,8 @@ public class ProgressDialog extends UIDialog {
 
     @Override
     public void setVisible(boolean b) {
-        super.setVisible(b);
         centerDialog.setVisible(b);
-        centerDialog.setResizable(false);
+        super.setVisible(b);
     }
 
     public void setProgressValue(int value) {
diff --git a/designer-base/src/com/fr/design/mainframe/loghandler/LogMessageBar.java b/designer-base/src/com/fr/design/mainframe/loghandler/LogMessageBar.java
index 71a7a7e64..8f6034f77 100644
--- a/designer-base/src/com/fr/design/mainframe/loghandler/LogMessageBar.java
+++ b/designer-base/src/com/fr/design/mainframe/loghandler/LogMessageBar.java
@@ -1,27 +1,29 @@
 package com.fr.design.mainframe.loghandler;
 
-import java.awt.BorderLayout;
-import java.awt.Dimension;
-import java.awt.event.MouseAdapter;
-import java.awt.event.MouseEvent;
-
-import javax.swing.JFrame;
-
 import com.fr.design.constants.UIConstants;
 import com.fr.design.gui.ilable.UILabel;
 import com.fr.general.Inter;
 
+import javax.swing.JFrame;
 import javax.swing.JPanel;
+import java.awt.BorderLayout;
+import java.awt.Dimension;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
 
 public class LogMessageBar extends JPanel {
 	private UILabel messageLabel;
     private int width = 600;
-	public static LogMessageBar THIS;
+	public static volatile LogMessageBar THIS;
 	private JFrame dlg = new LogDetailPane().showDialog();
 
 	public static LogMessageBar getInstance() {
 		if (THIS == null) {
-			THIS = new LogMessageBar();
+			synchronized (LogMessageBar.class) {
+				if (THIS == null) {
+					THIS = new LogMessageBar();
+				}
+			}
 		}
 		return THIS;
 	}
@@ -32,7 +34,7 @@ public class LogMessageBar extends JPanel {
         return bar;
     }
 
-	public LogMessageBar() {
+	private LogMessageBar() {
 		messageLabel = new UILabel();
 		setLayout(new BorderLayout());
 		add(messageLabel, BorderLayout.CENTER);