The application given below shows differing behavior on Windows NT and
Solaris.

The application invokes setBackground(Color.green) on a dialog.
The dialog comes up with a green background on Solaris, but with a
grey background on Windows NT.

To recreate, start the application and click the "Show Modal Dialog"
button.

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/* ModalDialogDisplayer.java
 * Modal Dialog displayer
 * This applet displays a modal dialog
 */

import java.awt.*;
import java.awt.event.*;
import java.applet.Applet;

public class ModalDialogDisplayer extends Applet implements ActionListener
{
  static Frame theFrame = new Frame("Modal Dialog Displayer");
  static Dialog modalDialog = null;
  Button showButton = new Button("Show Modal Dialog");
  Button redButton = new Button("Set panel color to red");
  Button blueButton = new Button("Set panel color to blue");
  Button dismissButton = new Button("Dismiss");
  Panel buttonPanel = new Panel();
  Panel colorPanel = new Panel();

  public ModalDialogDisplayer() {
      modalDialog = new Dialog(theFrame, "Modal Dialog", true);
      modalDialog.setLayout(new FlowLayout());
      modalDialog.setSize(200, 200);
      modalDialog.setBackground(Color.green);
      dismissButton.setBackground(Color.yellow);
      modalDialog.add(dismissButton);

      setLayout(new BorderLayout());
      showButton.setBackground(Color.yellow);
      buttonPanel.add(showButton);
      buttonPanel.add(redButton);
      buttonPanel.add(blueButton);
      colorPanel.setBackground(Color.yellow);
      add("North", buttonPanel);
      add("Center", colorPanel);

      showButton.addActionListener(this);
      redButton.addActionListener(this);
      blueButton.addActionListener(this);
      dismissButton.addActionListener(this);
  }

  // Make dialog visible
  public void actionPerformed(ActionEvent e) {
      if (e.getActionCommand() == "Show Modal Dialog")
        modalDialog.setVisible(true);
      else if (e.getActionCommand() == "Set panel color to red")
        colorPanel.setBackground(Color.red);
      else if (e.getActionCommand() == "Set panel color to blue")
        colorPanel.setBackground(Color.blue);
      else if (e.getActionCommand() == "Dismiss")
        modalDialog.dispose();
      else {}
  }

  public void setLocationOfDialog(int x, int y) {
      modalDialog.setLocation(x, y);
  }

  // Remove dialog
  public void cleanUp() {
      if (modalDialog != null)
modalDialog.dispose();
  }

  public static void main(String s[]) {
      ModalDialogDisplayer displayer = new ModalDialogDisplayer();
      theFrame.add("Center", displayer);
      theFrame.pack();
      theFrame.setSize(500, 300);
      theFrame.show();
      theFrame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
if (modalDialog != null)
         modalDialog.dispose();
       theFrame.dispose();
       System.exit(0);
   }
public void windowClosed(WindowEvent e) {
       if (modalDialog != null)
         modalDialog.dispose();
       theFrame.dispose();
   }
      });
  }

  public void start() {}
  public void stop() {}
  public void destroy() {}
  
}