Down arrow disappears on JComboBox

Question

I have a problem, I�m trying to make a JComboBox in an interface, but when I add it to my JPanel the down arrow wont show:
http://img290.imageshack.us/img290/5240/erroruv9.jpg
Code looks like this, most of it is not important but the funny part is that when I add the JComboBox initiated in startsida() it works fine, but when I add the JComboBox initiated in skapaContainerWindow() it doe�snt work. It seems that ActionListener messes up something, because if I add the pnlContainerWindow in the constructor it works fine. Any ideas?
import java.awt.*;
import java.awt.event.*;
import javax.swing.border.*;
import javax.swing.*;
import java.util.*;
public class Window extends JFrame implements ActionListener {
     //************ Variabler **************************************************
     Container c;
     //Skapa profilerna
     Vector<Profil> profiler;
     Profil KarlKarlsson, AnnaEriksson, AndersSvensson;
     //F�r headern
     JPanel pnlHeader;
     JLabel lblHeaderBack;
     //Startsida
     JComboBox boxStartsidaProfiler;
     JPanel pnlStartsidaContainer ;
     JButton btnStartsidaNyProfil, btnStartsidaLogin;
     //Ny Profil
     JPanel pnlNyProfilContainer;
     JButton btnSkapaNyAnv;
     //F�r menyn
     JPanel meny;
     //Huvudcontainern
     JPanel pnlContainerWindow;
     //F�r Min Sida
     JPanel pnlMinSidaKnappar;
     JButton btnMinSidaAndraProfil;
     JPanel pnlMinSida;
     JLabel lblMinSida;
     JComboBox boxTest;
     //H�jd och bredd p� containerna
     public static final int MAIN_X = 0;
     public static final int MAIN_Y = 0;
     public static final int MAIN_W = 617;
     public static final int MAIN_H = 491;
     public static final int SECONDARY_X = 0;
     public static final int SECONDARY_Y = 0;
     public static final int SECONDARY_W = 595;
     public static final int SECONDARY_H = 425;
     // ********************** Kontruktor **************************************
     public Window() {
          //Skapa alla sidor som beh�vs
          skapaProfiler();
          startsida();
          skapaHeader();
          skapaNyProfil();
          skapaMeny();
          skapaContainerWindow();
          c = getContentPane();
          c.setLayout(null);
          c.setBackground(new Color(192,192,192));
          //L�gg till.
          c.add(pnlStartsidaContainer);
          c.add(pnlHeader);
          this.setSize(800,600);
          this.setVisible(true);
          this.setResizable(false);
         this.setTitle("SUPERPORRGRAM");
         //this.setIconImage(trayIcon);
          this.setDefaultCloseOperation(EXIT_ON_CLOSE);
     // ********************** Skapa profiler som ska synas i inloggningsf�nstret*
     public void skapaProfiler() {
          profiler = new Vector<Profil>();
          //Egentligen ska dessa h�mtas fr�n n�gon databas, men h�r skapar vi dem bara.
          KarlKarlsson = new Profil("Karl Karlsson", "70", "30", true);
          AnnaEriksson = new Profil("Anna Eriksson", "55", "22", false);
          AndersSvensson = new Profil("Anders Svensson", "85", "25", true);
          profiler.add(KarlKarlsson);
          profiler.add(AnnaEriksson);
          profiler.add(AndersSvensson);
     // ********************** Skapa headern ***********************************     
     public void skapaHeader() {
          pnlHeader = new JPanel();
          pnlHeader.setLayout(null);
          pnlHeader.setBounds(0,0,800,72);
          lblHeaderBack = new JLabel(new ImageIcon("gfx\\logoBack.png"));
          lblHeaderBack.setBounds(0,0,800,77);
          pnlHeader.add(lblHeaderBack);
          pnlHeader.setBackground(new Color(104,225,255));
     // ********************** Skapa startsidan*********************************     
     public void startsida(){
          pnlStartsidaContainer = new JPanel();
          pnlStartsidaContainer.setLayout(null);
          pnlStartsidaContainer.setBounds(75,100,300,300);
          pnlStartsidaContainer.setBackground(Color.WHITE);
          pnlStartsidaContainer.setBorder(new TitledBorder(new LineBorder(Color.BLACK, 1), "V�lj profil"));
          boxStartsidaProfiler = new JComboBox();
          for (int i=0; i<profiler.size(); i++) {
               boxStartsidaProfiler.addItem(profiler.get(i).getNamn());
          boxStartsidaProfiler.setBounds(20,20,200,40);
          boxStartsidaProfiler.addActionListener(this);
          btnStartsidaLogin = new JButton("Login");
          btnStartsidaLogin.addActionListener(this);
          boxStartsidaProfiler.setBounds(10,20,150,30);
          btnStartsidaLogin.setBounds(10,140,150,30);
          btnStartsidaNyProfil = new JButton("Skapa ny profil");
          btnStartsidaNyProfil.addActionListener(this);
          btnStartsidaNyProfil.setBounds(10,80,150,30);
          pnlStartsidaContainer.add(boxStartsidaProfiler);
          pnlStartsidaContainer.add(btnStartsidaNyProfil);
          pnlStartsidaContainer.add(btnStartsidaLogin);
     // ********************** Skapa ny Profil-sidan ***********************************     
     public void skapaNyProfil() {
          pnlNyProfilContainer = new JPanel();
          pnlNyProfilContainer.setLayout(null);
          pnlNyProfilContainer.setBounds(75,100,300,300);
          pnlNyProfilContainer.setBackground(Color.WHITE);
          pnlNyProfilContainer.setBorder(new TitledBorder(new LineBorder(Color.BLACK, 1), "Skapa ny profil"));
          btnSkapaNyAnv = new JButton("Skapa profil!");
          btnSkapaNyAnv.addActionListener(this);
          btnSkapaNyAnv.setBounds(20,200,150,30);
     // ********************** Skapa menyn ***********************************     
     public void skapaMeny() {
          meny = new JPanel();
          meny.setLayout(null);
          meny.setBounds(9,102,151,92);
     // ********************** Skapa huvudcontainer *****************************     
     public void skapaContainerWindow() {
          pnlContainerWindow = new JPanel();
          pnlContainerWindow.setLayout(null);
          pnlContainerWindow.setBackground(Color.WHITE);
          pnlContainerWindow.setBounds(166,73,Window.MAIN_W,Window.MAIN_H);
          pnlContainerWindow.setBorder(new TitledBorder(new LineBorder(Color.BLACK, 1), "Container - Denna ska bort"));
          boxTest = new JComboBox();
          boxTest.addItem("Alternativ 1");
          boxTest.addItem("Alternativ 2");
          boxTest.addItem("Alternativ 3");
          boxTest.addItem("Alternativ 4");
          boxTest.setBounds(20,20,150,30);
          boxTest.addActionListener(this);
          pnlContainerWindow.add(boxTest);
     //************ Actions ****************************************************
     public void actionPerformed(ActionEvent e) {
          //Actions fr�n skapa ny profil
          if (e.getSource()==btnSkapaNyAnv) {
          //Felkontrollen h�r!!
               c.remove(pnlNyProfilContainer);
               c.add(pnlStartsidaContainer);
               c.repaint();               
          //Actions fr�n startsidan
          if (e.getSource()==btnStartsidaNyProfil) {
               c.remove(pnlStartsidaContainer);
               c.add(pnlNyProfilContainer);
               c.repaint();               
          if (e.getSource()==btnStartsidaLogin) {
               c.remove(pnlStartsidaContainer);
               c.add(meny);
               c.add(pnlContainerWindow);
               repaint();               
     //************ Mainmetod***************************************************
     public static void main(String[] args) {
     Window window = new Window();     
}

Answer 1

Swing related questions should be posted in the Swing forum.
Code looks like this, most of it is not important If its not important then don't post it!. We don't want to read through hundreds of lines of unnecessary code.
If you need further help then you need to create a [url http://homepage1.nifty.com/algafield/sscce.html]Short, Self Contained, Compilable and Executable, Example Program (SSCCE) that demonstrates the incorrect behaviour, because I can't guess exactly what you are doing based on the information provided.
And don't forget to use the [url http://forum.java.sun.com/help.jspa?sec=formatting]Code Formatting Tags so the code retains its original formatting.