Border not rendering properly on JPanel

Question

This is just a general question to see if I'm the only one having this problem or whether it is just a bug.
I've got a Jframe with a couple of Jpanels within it. I want a border round one of the panels but for some reason the border only shows fully around 3 edges and only partly along the edge adjacent to the other JPanel.
I thought this might be a layering problem with the panel without the border being placed on top of the border itself but I've had a similar problem with some JTextField. I've got 3 JTextFields in a JPanel each having their own border but every now and again the border will disappear from around the bottom JTextField.
I realise this may well be a problem specific to my system or OS (Win 2000) but I thought I'd just check.
Thanks, Clarkie

Answer 1

Thanks for replying so quickly. Here is a cut down version of my code. I appologise now for using NetBeans as I believe this is frowned upon by many users of these forums.
* NewJFrame.java
* Created on 14 August 2006, 15:17
package ets;
import java.awt.*;
import javax.swing.*;
* @author  administrator
public class sscce extends javax.swing.JFrame
    /** Creates new form NewJFrame */
    public sscce()
        initComponents();
        this.setIconImage(new ImageIcon("images/redtick48x48.gif").getImage());
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">
    private void initComponents()
        java.awt.GridBagConstraints gridBagConstraints;
        panelCont = new javax.swing.JPanel();
        panelNav = new javax.swing.JPanel();
        panelBtnsAndImg = new javax.swing.JPanel();
        panelNavBtns = new javax.swing.JPanel();
        btnNav_client = new javax.swing.JButton();
        btnNav_job = new javax.swing.JButton();
        btnNav_inv = new javax.swing.JButton();
        btnNav_cert = new javax.swing.JButton();
        btnNav_admin = new javax.swing.JButton();
        panelLogout = new javax.swing.JPanel();
        panelMain = new javax.swing.JPanel();
        panelClientMenu = new javax.swing.JPanel();
        panelClientMent_title = new javax.swing.JPanel();
        labClientMent_title = new javax.swing.JLabel();
        jMenuBar1 = new javax.swing.JMenuBar();
        jMenu1 = new javax.swing.JMenu();
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("ETS - Client Management System");
        setBackground(new java.awt.Color(255, 255, 255));
        setExtendedState(javax.swing.JFrame.MAXIMIZED_BOTH);
        setName("mainFrame");
        panelCont.setLayout(new java.awt.BorderLayout());
        panelCont.setBackground(new java.awt.Color(255, 255, 255));
        panelNav.setLayout(new java.awt.BorderLayout());
        panelNav.setBackground(new java.awt.Color(255, 255, 255));
        panelNav.setMaximumSize(new java.awt.Dimension(150, 150));
        panelNav.setPreferredSize(new java.awt.Dimension(150, 100));
        panelBtnsAndImg.setLayout(new java.awt.GridLayout(0, 1));
        panelBtnsAndImg.setBackground(new java.awt.Color(255, 255, 255));
        panelBtnsAndImg.setMaximumSize(new java.awt.Dimension(150, 32767));
        panelNavBtns.setLayout(new java.awt.GridLayout(0, 1));
        panelNavBtns.setBackground(new java.awt.Color(255, 255, 255));
        btnNav_client.setText("Clients");
        panelNavBtns.add(btnNav_client);
        btnNav_job.setText("Jobs");
        panelNavBtns.add(btnNav_job);
        btnNav_inv.setText("Invoices");
        panelNavBtns.add(btnNav_inv);
        btnNav_cert.setText("Certificates");
        panelNavBtns.add(btnNav_cert);
        btnNav_admin.setText("Admin");
        panelNavBtns.add(btnNav_admin);
        panelBtnsAndImg.add(panelNavBtns);
        panelNav.add(panelBtnsAndImg, java.awt.BorderLayout.NORTH);
        panelLogout.setLayout(new java.awt.BorderLayout());
        panelLogout.setBackground(new java.awt.Color(255, 255, 255));
        panelLogout.setMaximumSize(new java.awt.Dimension(150, 32767));
        panelNav.add(panelLogout, java.awt.BorderLayout.CENTER);
        panelCont.add(panelNav, java.awt.BorderLayout.WEST);
        panelMain.setLayout(new java.awt.CardLayout());
        panelMain.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));
        panelClientMenu.setLayout(new java.awt.GridBagLayout());
        panelClientMenu.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));
        panelClientMent_title.setLayout(new java.awt.BorderLayout());
        labClientMent_title.setFont(new java.awt.Font("Tahoma", 0, 36));
        labClientMent_title.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        labClientMent_title.setText("Main Panel");
        panelClientMent_title.add(labClientMent_title, java.awt.BorderLayout.CENTER);
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.ipadx = 5;
        gridBagConstraints.ipady = 15;
        panelClientMenu.add(panelClientMent_title, gridBagConstraints);
        panelMain.add(panelClientMenu, "card2");
        panelCont.add(panelMain, java.awt.BorderLayout.CENTER);
        getContentPane().add(panelCont, java.awt.BorderLayout.CENTER);
        jMenu1.setText("Menu");
        jMenuBar1.add(jMenu1);
        setJMenuBar(jMenuBar1);
        pack();
    }// </editor-fold>
     * @param args the command line arguments
    public static void main(String args[])
        Toolkit tk = java.awt.Toolkit.getDefaultToolkit();
        java.awt.EventQueue.invokeLater(new Runnable()
            public void run()
                sscce s = new sscce();
                s.setExtendedState(javax.swing.JFrame.MAXIMIZED_BOTH);
                s.setVisible(true);
    // Variables declaration - do not modify
    private javax.swing.JButton btnNav_admin;
    private javax.swing.JButton btnNav_cert;
    private javax.swing.JButton btnNav_client;
    private javax.swing.JButton btnNav_inv;
    private javax.swing.JButton btnNav_job;
    private javax.swing.JMenu jMenu1;
    private javax.swing.JMenuBar jMenuBar1;
    private javax.swing.JLabel labClientMent_title;
    private javax.swing.JPanel panelBtnsAndImg;
    private javax.swing.JPanel panelClientMent_title;
    private javax.swing.JPanel panelClientMenu;
    private javax.swing.JPanel panelCont;
    private javax.swing.JPanel panelLogout;
    private javax.swing.JPanel panelMain;
    private javax.swing.JPanel panelNav;
    private javax.swing.JPanel panelNavBtns;
    // End of variables declaration
}Also, I sometimes get a diagonal line going from the top left corner of a container to the first element when the JFrame is resized or reloaded from the Taskbar.
Thanks again, Clarkie