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Mr. Maples has been a director since August 2004, and was appointed Chairman of the Board in April 2006. Mr. Maples held various management positions at Microsoft Corporation from April 1988 to July 1995, including Executive Vice President of the Worldwide Products Group. As a member of the Office of the President at Microsoft, Mr. Maples reported directly to the Chairman and Chief Software Architect. Previously, he served as Director of Software Strategy for International Business Machines Corp. Mr. Maples also currently serves on the boards of Motive, Inc., a service management software company, Lexmark International, Inc., a laser and inkjet printer company, and Sonic Corp., an operator and franchisor of drive-in restaurants. He is currently a member of the Board of Visitors of the Engineering School at the University of Oklahoma and the College of Engineering Foundation Advisory Council at the University of Texas at Austin. Mr. Maples received a Bachelor of Science degree in Electrical Engineering from the University of Oklahoma, and a Master of Business Administration from Oklahoma City University. | 