Event Handler for CXTListCtrl

I graphically created a List Control object in an MFC dialog.
Programatically, I mapped that List Control to a CXTListCtrl, and I have been able to populate the CXTListCtrl just fine.

However, I have not been able to successful add an Event Handler to this CXTListCtrl.  I tried to use the Event Handler Wizard to add the event.  Here is my code for my event.

void CDlgMainStart::OnNMRclickStartList(NMHDR *pNMHDR, LRESULT *pResult)
{
    AfxMessageBox("Test");
    *pResult = 0;
}

What happens when I actually right-click on the CXTListCtrl is that my program freezes.

I have tested the above on a CListCtrl and it works perfectly.  However, I do not understand why it doesnt work for a CXTListCtrl.  Please help!

I am currently linking in XTP9700EvalLibd.dll

Thanks.