Classic Stage Company (Brian Kulick, Artistic Dir; Greg Reiner, Exec Dir) have announced that the official opening of Anton Chekhov’s IVANOV has been postponed from this Sunday, November 4 to Thursday, November 15 due to the continuing power outage at the theater at 136 East 13^th Street, which has forced the cancellation of five previews.   Directed by Austin Pendleton,  "Ivanov" stars Ethan Hawke, Joely Richardson and Juliet Rylance.  The cast also features Glenn Fitzgerald, Annette Hunt, Stephanie Janssen, Roberta Maxwell, George Morfogen, James Patrick Nelson, Anthony Newfield, Austin Pendleton, Jonathan Marc Sherman, and Anne Troupe.  "Ivanov" will play a limited engagement through Sun Dec 9.