scaler deleting destructor

[C++ Programming]

Hi all

Can anybody tell me what is scalar deleting destructor.
When i try to delete a class pointer which is derived from CWnd it is showing this error.

class CGraphTollTip : public CWnd
{
....
....
}

class CGraphicsView : public CScrollView
{
....
....
CGraphTollTip *m_wndGraphTollTip;

void CGraphicsView::OnInitialUpdate()
{
....
m_wndGraphTollTip=new CGraphTollTip[SomeValue];
....
....
}

CGraphicsView::~CGraphicsView()
{
delete [] m_wndGraphTollTip;
}
....
....

}

While deleting m_wndGraphTollTip i am getting this error in vc6.0 callstack.

Please help me.