Seg Fault with multiple QDialogs

It has been a while since I tried programming using QT so I might be doing something very newbish.

Here is the situation:
--Ubuntu 8.10
--QT 4.5 binary install that includes Qt Creator 1.0

Application:
--MainWindow with two dialog boxes

I autogenerate the dialog code using Qt Creator so I have two classes that are called Ui_Dialog and Ui_Dialog2.

When I try to initialize them in the MainWindow constructor the entire application seg faults when it is run.

Here is the code:

Code:

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
 
#include <QtGui/QMainWindow>
#include <QDialog>
 
namespace Ui
{
    class Dialog;
    class Dialog2;
    class MainWindowClass;
}
 
class MainWindow : public QMainWindow
{
    Q_OBJECT
 
public:
    MainWindow(QWidget *parent = 0);
    ~MainWindow();
 
private:
    QDialog dOne;
    QDialog dTwo;
 
    Ui::MainWindowClass *ui;
    Ui::Dialog  *p_dOne;
    Ui::Dialog2 *p_dTwo;
};
 
#endif // MAINWINDOW_H

Code:

#include "mainwindow.h"
#include "ui_dialog.h"
#include "ui_dialog2.h"
#include "ui_mainwindow.h"
 
MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent), ui(new Ui::MainWindowClass)
{
  ui->setupUi(this);
  p_dOne->setupUi(&dOne);
  p_dTwo->setupUi(&dTwo);
}
 
MainWindow::~MainWindow()
{
    delete ui;
}

Code:

/********************************************************************************
** Form generated from reading ui file 'dialog.ui'
**
** Created: Sat Mar 21 22:13:51 2009
**      by: Qt User Interface Compiler version 4.5.0
**
** WARNING! All changes made in this file will be lost when recompiling ui file!
********************************************************************************/
 
#ifndef UI_DIALOG_H
#define UI_DIALOG_H
 
#include <QtCore/QVariant>
#include <QtGui/QAction>
#include <QtGui/QApplication>
#include <QtGui/QButtonGroup>
#include <QtGui/QDialog>
#include <QtGui/QDialogButtonBox>
#include <QtGui/QGridLayout>
#include <QtGui/QHeaderView>
#include <QtGui/QLabel>
 
QT_BEGIN_NAMESPACE
 
class Ui_Dialog
{
public:
    QGridLayout *gridLayout;
    QLabel *label;
    QDialogButtonBox *buttonBox;
 
    void setupUi(QDialog *Dialog)
    {
        if (Dialog->objectName().isEmpty())
            Dialog->setObjectName(QString::fromUtf8("Dialog"));
        Dialog->resize(400, 100);
        gridLayout = new QGridLayout(Dialog);
        gridLayout->setObjectName(QString::fromUtf8("gridLayout"));
        label = new QLabel(Dialog);
        label->setObjectName(QString::fromUtf8("label"));
 
        gridLayout->addWidget(label, 0, 0, 1, 1);
 
        buttonBox = new QDialogButtonBox(Dialog);
        buttonBox->setObjectName(QString::fromUtf8("buttonBox"));
        buttonBox->setOrientation(Qt::Horizontal);
        buttonBox->setStandardButtons(QDialogButtonBox::Cancel|QDialogButtonBox::Ok);
 
        gridLayout->addWidget(buttonBox, 1, 0, 1, 1);
 
 
        retranslateUi(Dialog);
        QObject::connect(buttonBox, SIGNAL(accepted()), Dialog, SLOT(accept()));
        QObject::connect(buttonBox, SIGNAL(rejected()), Dialog, SLOT(reject()));
 
        QMetaObject::connectSlotsByName(Dialog);
    } // setupUi
 
    void retranslateUi(QDialog *Dialog)
    {
        Dialog->setWindowTitle(QApplication::translate("Dialog", "Dialog", 0, QApplication::UnicodeUTF8));
        label->setText(QApplication::translate("Dialog", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:'Sans Serif'; font-size:9pt; font-weight:400; font-style:normal;\">\n"
"<p align=\"center\" style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">Dialog One</p></body></html>", 0, QApplication::UnicodeUTF8));
        Q_UNUSED(Dialog);
    } // retranslateUi
 
};
 
namespace Ui {
    class Dialog: public Ui_Dialog {};
} // namespace Ui
 
QT_END_NAMESPACE
 
#endif // UI_DIALOG_H

Code:

/********************************************************************************
** Form generated from reading ui file 'dialog2.ui'
**
** Created: Sat Mar 21 22:15:00 2009
**      by: Qt User Interface Compiler version 4.5.0
**
** WARNING! All changes made in this file will be lost when recompiling ui file!
********************************************************************************/
 
#ifndef UI_DIALOG2_H
#define UI_DIALOG2_H
 
#include <QtCore/QVariant>
#include <QtGui/QAction>
#include <QtGui/QApplication>
#include <QtGui/QButtonGroup>
#include <QtGui/QDialog>
#include <QtGui/QDialogButtonBox>
#include <QtGui/QGridLayout>
#include <QtGui/QHeaderView>
#include <QtGui/QLabel>
 
QT_BEGIN_NAMESPACE
 
class Ui_Dialog2
{
public:
    QGridLayout *gridLayout;
    QLabel *label;
    QDialogButtonBox *buttonBox;
 
    void setupUi(QDialog *Dialog2)
    {
        if (Dialog2->objectName().isEmpty())
            Dialog2->setObjectName(QString::fromUtf8("Dialog2"));
        Dialog2->resize(400, 100);
        gridLayout = new QGridLayout(Dialog2);
        gridLayout->setObjectName(QString::fromUtf8("gridLayout"));
        label = new QLabel(Dialog2);
        label->setObjectName(QString::fromUtf8("label"));
 
        gridLayout->addWidget(label, 0, 0, 1, 1);
 
        buttonBox = new QDialogButtonBox(Dialog2);
        buttonBox->setObjectName(QString::fromUtf8("buttonBox"));
        buttonBox->setOrientation(Qt::Horizontal);
        buttonBox->setStandardButtons(QDialogButtonBox::Cancel|QDialogButtonBox::Ok);
 
        gridLayout->addWidget(buttonBox, 1, 0, 1, 1);
 
 
        retranslateUi(Dialog2);
        QObject::connect(buttonBox, SIGNAL(accepted()), Dialog2, SLOT(accept()));
        QObject::connect(buttonBox, SIGNAL(rejected()), Dialog2, SLOT(reject()));
 
        QMetaObject::connectSlotsByName(Dialog2);
    } // setupUi
 
    void retranslateUi(QDialog *Dialog2)
    {
        Dialog2->setWindowTitle(QApplication::translate("Dialog2", "Dialog", 0, QApplication::UnicodeUTF8));
        label->setText(QApplication::translate("Dialog2", "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:'Sans Serif'; font-size:9pt; font-weight:400; font-style:normal;\">\n"
"<p align=\"center\" style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">Dialog Two</p></body></html>", 0, QApplication::UnicodeUTF8));
        Q_UNUSED(Dialog2);
    } // retranslateUi
 
};
 
namespace Ui {
    class Dialog2: public Ui_Dialog2 {};
} // namespace Ui
 
QT_END_NAMESPACE
 
#endif // UI_DIALOG2_H

The last two are automatically generated. I cannot figure out why initializing them both in the MainWindow constructor would cause a seg fault!!!