debug version crashes on base Create();

[nss]

The release exe works fine. The debug is crashing at the calll to CDialog Create()

BOOL CDisplayInfoList::Create(UINT nID, CWnd *pWnd, const CString* keys, int keysSize, std::set* pKeySet)
{

m\_pParentWnd =  pWnd;

m\_pKeySet = pKeySet;

m\_allKeysArray = new CString \[keysSize\];

m\_arraySize = keysSize;

for (int i =0; i < keysSize; i++)
{
	m\_allKeysArray\[i\] = keys\[i\];
}
`return CDialog::Create( nID,pWnd);`

}

Its just a popup resizing dialog with a clistctrl and two buttons. What shall I suspect? THe call is :

CDisplayInfoList\* pDisplayInfoList = new CDisplayInfoList;

if (pDisplayInfoList == NULL) return;

`BOOL ret = pDisplayInfoList->Create(IDD_DISPLAYINFOLIST, this, goodFields, flds.size() ,&(pDoc->m_keySet));`	if(!ret)  //Create failed.
{
	AfxMessageBox("Error creating viewbox");

	delete pDisplayInfoList;

	return;
}

winocc.cpp line 259, where its saying its not IsWindow:

int CWnd::GetDlgCtrlID() const
{
ASSERT(::IsWindow(m_hWnd));

[nss]

sorry its line 279...in

void CWnd::MoveWindow(int x, int y, int nWidth, int nHeight, BOOL bRepaint)
{
ASSERT(::IsWindow(m_hWnd));

if (m\_pCtrlSite == NULL)
	::MoveWindow(m\_hWnd, x, y, nWidth, nHeight, bRepaint);
else
	m\_pCtrlSite->MoveWindow(x, y, nWidth, nHeight, bRepaint);

}

and stops in this if I set a breakpoint in it....

[nss]

I made a new identical class but named its resource and classname shorter. One of the two factors (maybe both) made the debug version happy too. I didnt realize there was a limit to the length of the names????