new delete 非常奇怪的内存问题

<!--<br><br>Code highlighting produced by Actipro CodeHighlighter (freeware)<br>http://www.CodeHighlighter.com/<br><br>--> int  i  =   0 , j  =   0 ;
    CJob **  ppJobs  =  NULL;
     try
    {
         int  nCount  =  m_xlist.CountCheckedItems( 0 );
         if  (nCount)
        {
            ppJobs  =   new  CJob * [nCount];
             for  (; i  <  m_xlist.GetItemCount(); i ++ )     //  record all cancel jobs
            {
                 if  (m_xlist.GetCheckbox(i,  0 )  ==  TRUE)
                {
                    CJob *  pJob  =  reinterpret_cast < CJob *> (m_xlist.GetItemData(i)); 
                    ppJobs[j]  =  pJob; 
                    j ++ ;
                }
            }

             for  (; j  >   0 ; j -- )             //  cancel jobs from array
            {
                ppJobs[j - 1 ] -> Cancel();
            }
            
            delete [ ] ppJobs;
            pJobs = NULL;
        }
    }
     catch ( ){}
_ASSERTE( _CrtCheckMemory( ) );