I Have Indiv. Client Who E-filed 3/4/09 2008 Trn. History Is That 2006,2007, & 2008 Had Nol And Each Yr. The Election Was Made To Forgo Carryback Losses. The 3/27/09 Bulletin Described Proceedures That Became Available To Allow 5 Yr. Carryback... Even After 2008 Filed And Even When Election To Forgo Nol Carryback Had Been Made For 2008. I Set This Return Aside And Planned To "undo" The Election Made And Carryback The Loss To 2003. When I Started The Work, I Noticed An April 17,2009 Deadline For That Revocation & New Election..?? Have I Now Been Locked Out Of That Proceedure And Do I Have Other Options To Allow The New Process To Work ??