JFileChooser hangs when clicking OK or CANCEL

I have created an applet to run primarily in Netscape 6 with JRE 1.3.1. I have also adjusted the policy file to give my applet all permissions on the local system. In my Applet I want the user to select a file from the local hard drive. To achieve this I am using the JFileChooserClass however after I select a file from the FileChooser and click OK the dialog does not disappear and Netscape hangs.
Has anyone else seen this behaviour? Is there a way to workaround it?
I have included my code just in case I am doing something wrong.
import java.awt.*;
import javax.swing.*;
import javax.swing.filechooser.*;
System.setSecurityManager(null);
int returnVal = 0;
String fileName = "";
//Create a file chooser
final JFileChooser fc = new JFileChooser();
returnVal = fc.showOpenDialog(this.getParent());
if (returnVal == JFileChooser.APPROVE_OPTION) {
File file = fc.getSelectedFile();
fileName = file.getAbsolutePath();
Thanks,
Anthony

Hi,
I am having a similar problem. We have a signed applet that presents a JFileChooser and the user selects a file to open. The JFileChooser hangs IE. The applet worked fine on JRE1.3.0.2. The problem arose when we upgraded to JRE1.3.1. Down grading to 1.3.0.2 is not an option for us. Does anyone have a workaround ?
regards,
Joag

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