diff -r 4e52836d327b core.ui/src/org/netbeans/core/ui/warmup/MenuWarmUpTask.java
--- a/core.ui/src/org/netbeans/core/ui/warmup/MenuWarmUpTask.java	Tue May 18 14:58:39 2010 +0200
+++ b/core.ui/src/org/netbeans/core/ui/warmup/MenuWarmUpTask.java	Mon May 24 12:47:10 2010 +0200
@@ -48,6 +48,7 @@
 
 import java.awt.Component;
 import java.awt.Dimension;
+import java.awt.EventQueue;
 import java.awt.Frame;
 import java.awt.event.ActionEvent;
 import java.awt.event.WindowAdapter;
@@ -254,10 +255,20 @@
 
                 @Override
                 public void run() {
-                    h.suspend(NbBundle.getMessage(MenuWarmUpTask.class, "MSG_Refresh_Suspend"));
+                    if (EventQueue.isDispatchThread()) {
+                        try {
+                            h.suspend(NbBundle.getMessage(MenuWarmUpTask.class, "MSG_Refresh_Suspend"));
+                        } catch (Throwable t) {
+                            // ignore any errors
+                        }
+                    } else {
+                        EventQueue.invokeLater(this);
+                    }
                 }
             }
-            ActionEvent handleBridge = new HandleBridge(this);
+            HandleBridge handleBridge = new HandleBridge(this);
+            // preinitialize
+            handleBridge.run();
 
             try {
                 File userDir = new File(System.getProperty("netbeans.user")); // NOI18N