I have a very basic swing app with a button that when clicked adds some
text to a JTextArea.

It all works fine until I try to use
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()) to
give the app a Windows XP look and feel.

The program still functions but the button no longer depresses when you
click it.  Is this a bug or am I doing something wrong?

am using jre1.5.0_06  and  JDK 5

Here's some code to see if anybody else gets this.  After you click
Native the Add Text button doesn't animate.  Sorry about the formating,
it's late :)

import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.UIManager;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class test extends javax.swing.JFrame implements ActionListener
    {
    JTextArea messageBox = new JTextArea(20,20);
    JButton addText = new JButton("Add Text");
    JButton changeThemexp = new JButton("Native");
    JButton changeThemecross = new JButton("X platform");

    public test()
        {

            super("Test");

            setDefaultCloseOperation(EXIT_ON_CLOSE);
            messageBox.setLineWrap(true);
            JScrollPane scrollPane= new JScrollPane (messageBox);
            addText.addActionListener(this);
            changeThemexp.addActionListener(this);
            changeThemecross.addActionListener(this);
            JPanel panel = new JPanel();
            panel.add(addText);
            panel.add(changeThemexp);
            panel.add(changeThemecross);
            panel.add(scrollPane);
            add(panel);
            pack();

            setResizable(false);
            setVisible(true);
        }

            public void addText (String texttoadd)
            {
                messageBox.append(texttoadd);
            }

        public void actionPerformed(ActionEvent evt)
            {
                if (evt.getSource()== addText)addText("Testing\n");
                if (evt.getSource()== changeThemexp)
                    try
                            {
                            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                            }
                            catch (Exception e) {};repaint();
                if (evt.getSource()== changeThemecross)
                    try
                            {
                            UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
                            }
                            catch (Exception e) {};repaint();
    }
                    ;

        public static void main(String[] args)
        {
        test gui = new test();
        }
    }