Problem with dropdown button with image and check in toolbar on windows seven

[ENoesis]

Hello, I am using a CToolBar to display a button with a dropdown list composed of image with a check on left.
The following source code work well on xp and failed to display checks on seven.
Here is an example of :
- success on windows xp :

- failure on windows seven

- sucess on windows seven but with strings in place of images :


Is there something wrong with my code or is their something to do to make it works on seven ?

BOOL CTestBtnMenuDlg::OnInitDialog()
{
	CDialog::OnInitDialog();
	// create the toolbar
	m_toolbar.Create(this, WS_CHILD|WS_VISIBLE|CBRS_TOP, IDR_TOOLBAR1);
	m_toolbar.LoadToolBar(IDR_TOOLBAR1);
	m_toolbar.SetBarStyle(m_toolbar.GetBarStyle() |
                          CBRS_TOOLTIPS |
						  CBRS_FLYBY |
                          CBRS_GRIPPER |
                          CBRS_SIZE_DYNAMIC);
	m_toolbar.MoveWindow(0, 0, 200, 40);

	// set style of first button to dropdown
	UINT uiBtnStyle = m_toolbar.GetButtonStyle(0);
	uiBtnStyle |= BTNS_DROPDOWN;
	m_toolbar.SetButtonStyle( 0, uiBtnStyle );

	// allow draw arrows
	m_toolbar.GetToolBarCtrl().SetExtendedStyle( TBSTYLE_EX_DRAWDDARROWS );
}

HMENU CTestBtnMenuDlg::CreatePopupMenu()
{
	CBitmap bmpItemMenu;

	// create a popup menu
	CMenu mnuPopup;
	mnuPopup.CreatePopupMenu();

	// load bitmap 1 for drop down list
	bmpItemMenu.LoadBitmapA(IDB_BITMAP1);
	mnuPopup.AppendMenu(MFT_BITMAP, 0, &bmpItemMenu );
	bmpItemMenu.Detach();

	// load bitmap 2 for drop down list
	bmpItemMenu.LoadBitmapA(IDB_BITMAP2);
	mnuPopup.AppendMenu(MFT_BITMAP, 1, &bmpItemMenu );
	bmpItemMenu.Detach();

	return mnuPopup.Detach();
}

void CTestBtnMenuDlg::OnToolbarDropDown( NMHDR* pnmtb, LRESULT *plr )
{
	// create popup menu 
	HMENU hMnuPopup = CreatePopupMenu();

	// select checked item
	static int idx=0;
	if (idx == 0)
		idx = 1;
	else
		idx = 0;
	::CheckMenuItem( hMnuPopup, idx, MF_CHECKED );

	// display popup menu
	CRect	rcPosItem;
	rcPosItem.top = 25;
	rcPosItem.bottom = 100;
	rcPosItem.left = 0;
	rcPosItem.right = 100;
	ClientToScreen(&rcPosItem);
	::TrackPopupMenu( hMnuPopup, TPM_LEFTALIGN | TPM_LEFTBUTTON | TPM_VERTICAL,
						rcPosItem.left, rcPosItem.top, 0, GetSafeHwnd(),
						&rcPosItem );
}

Thanks in advance.