JComboBox with Vector for items doesn't show any item at first. This occurs with Swing-1.0.2 and JDK1.1.6 on Solaris 2.6 and Windows NT.

Steps to Reproduce:
0) Launch the code below with the configuration above.
1) Look at and make selections from the popup in the JComboBox.
RESULT: When you first look at the JComboBox, it looks like nothing is in it. However, after you make a selection, then it appears at the top.

import java.awt.*;
import java.awt.event.*;
import com.sun.java.swing.*;
import java.util.Vector;

public class ComboVector extends JFrame {
 Vector vector = new Vector();
 JPanel panel = new JPanel();

 public ComboVector() {
  vector.addElement("Top");
  vector.addElement("Center");
  vector.addElement("Bottom");
  JComboBox box = new JComboBox(vector);
  box.setPreferredSize(new Dimension(250,70));
  setSize(400,500);
  panel.setPreferredSize(new Dimension(400,300));
  panel.add(box);
   getContentPane().add(panel);
   pack();
   setVisible(true);
  }

  public static void main(String args[]) {
     JFrame f = new ComboVector();

     f.addWindowListener(new WindowAdapter() {
       public void windowClosing(WindowEvent e) { System.exit(0); } });
  }

}