464 F.3d 634 Lila T. GAVIN, on behalf of herself and of all persons similarly situated, Plaintiff-Appellant,v.AT & T CORP. and Georgeson Shareholder Communications, Inc., Defendants-Appellees. No. 05-4398. United States Court of Appeals, Seventh Circuit. Argued June 6, 2006. Decided September 6, 2006. As Amended September 11, 2006. COPYRIGHT MATERIAL OMITTED Clinton A. Krislov (argued), […]