The following simple demo program which used to work fine for jdk1.3 hung up
my machine completely. The panic reset Stop-A would not bring the machine
to reboot at all. The only way to reboot is power cycle.

The gif file that's require to run the demo is with the X Attachments.

My frame buffer is Raptor GFX also known as PGX32, PN 370-3753
I have tried with a different PGX32 graphic card and the same thing happened.
So that ruled out bad hardware.

This same program ran OK for someone who has a 3D Creator frame buffer.

I believe I have all the latest patches required to run JDK1.4.
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import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

public class rButton extends JFrame {

    rButton() {
        Container c = getContentPane();
        c.setLayout(new FlowLayout());

        JPanel p1 = new JPanel();
        JPanel p2 = new JPanel();
        p1.setLayout(new BoxLayout(p1, BoxLayout.X_AXIS));
        p2.setLayout(new BoxLayout(p2, BoxLayout.Y_AXIS));
        c.add(p1);
        c.add(p2);

        ImageIcon icon = new ImageIcon("./red-ball.gif");

        JRadioButton []rb1 = {
            new JRadioButton("Insets = 40", icon),
            new JRadioButton("Insets = 30"),
            new JRadioButton("Insets = 20"),
            new JRadioButton("Insets = 10")
        };

        JCheckBox cb1 = new JCheckBox("Insets = 15", icon);
        JCheckBox cb2 = new JCheckBox("Insets = 15", icon);
        cb1.setMargin(new Insets(15, 15, 15, 15));
        cb2.setMargin(new Insets(15, 15, 15, 15));

        rb1[0].setMargin(new Insets(10, 10, 10, 10));
        rb1[1].setMargin(new Insets(20, 20, 20, 20));
        rb1[2].setMargin(new Insets(30, 30, 30, 30));
        rb1[3].setMargin(new Insets(40, 40, 40, 40));

        JRadioButton []rb2 = {
            new JRadioButton("Insets = 40", icon),
            new JRadioButton("Insets = 30"),
            new JRadioButton("Insets = 20"),
            new JRadioButton("Insets = 10")
        };

        rb2[0].setMargin(new Insets(10, 10, 10, 10));
        rb2[1].setMargin(new Insets(20, 20, 20, 20));
        rb2[2].setMargin(new Insets(30, 30, 30, 30));
        rb2[3].setMargin(new Insets(40, 40, 40, 40));

        for (int i = 0; i < 4; i++) {
            p1.add(rb1[i]);
            p2.add(rb2[i]);
        }

        p1.add(cb1);
        p2.add(cb2);

        p1.validate();
        p2.validate();

        pack();
        setSize(800, 400);
        setVisible(true);
        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent we) {
                System.exit(0);
            }
        });
    }

   public static void main(String argv[]) {
        new rButton();
    }
}