getExistingDirectory doesn not expand directory tree

Good evening,
I'm writing a code where I call the getExistingDirectory and the directory tree doesn't expand.
This is the code:

Code:

---

void MainWindow::on_sourceDirBrowseButton_clicked()
{
     QString path = QFileDialog::getExistingDirectory(this, tr("Open Directory"),
                                                     m_application->userDataDir().path()); // This doesn't expand
    if (!path.isEmpty())
    {
        m_application->setSourceDirPaths(QStringList(path));
    }
}

---

I'm working under Windows XP.

Any help is appreciated.

Regards,
Franco

What exactly does m_application->userDataDir().path() return?

Hi Chris,
it returns "C:/Documents and Settings/Usuario/Mis documentos/CertiBoxUserData"
and the dir exists

When you say "doesn't expand" what do you mean? Are there subdirectories of ""C:/Documents and Settings/Usuario/Mis documentos/CertiBoxUserData" that you cannot access?

yes there are subdirectories and when I execute the dialog I have to click on the + symbol to see them.
I would open the dialog and see them immediately. I hope you can understand me