Problem with Tab Control

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TabControl

Hi,
Am strugling with a static tab control.
Problem is the Tab control is statically placed on a dialog which is having two group boxes. One is parent group box inside which another group box is present. And the tab control i have placed here.

When i run the application, the Tab control is getting hidden and if i click on the area where i have placed the Tab, it gets displayed. Similar behaviour on switching the view, minimizing,maximaise and resizing.


I have modified even the Tab order properly to make Tab control should get the first priority. but nothing is working.

Below is the code which i have written to add pages:

CString tabTitle;
TC_ITEM tabCtrlItem;
memset(&tabCtrlItem, 0, sizeof(tabCtrlItem));
eReconTab.ModifyStyle( WS_VISIBLE | WS_CHILD, 0,SWP_SHOWWINDOW);
//FBP Page
if (!eNMFBPPage.Create(this))
{
  return FALSE;
}

tabTitle = _T("FBP");
tabCtrlItem.mask = TCIF_TEXT|TCIF_IMAGE|TCIF_PARAM;
tabCtrlItem.pszText = tabTitle.GetBuffer(0);
tabCtrlItem.iImage = -1;
tabCtrlItem.lParam = (LPARAM)(CWnd*)&eNMFBPPage;
eReconTab.InsertItem(0, &tabCtrlItem);

tabTitle.ReleaseBuffer(-1);

CRect tabRect;
eReconTab.GetWindowRect(&tabRect);
ScreenToClient(tabRect);
eReconTab.AdjustRect(FALSE, tabRect);

eNMFBPPage.MoveWindow(tabRect);

eReconTab.SetCurSel(0);
eNMFBPPage.ShowWindow(SW_SHOW);

Pages and all gets added properly. Only problem is the Tab control is getting hidden until i click on the area.
tried with SetWindowPos and all. No Solution. If i delete both group box then it works fine.

Please any body help........