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John McCartney was appointed to our board of directors on October 12 2004. Since January 2001 he has served as chairman of the board of directors of Westcom Group Inc. a specialty distributor of networking and communications equipment on whose board he has served since August 1998. He was elected chairman of the board of directors of A.M. Castle Corporation a steel distributor on January 25 2007 and has served on that board since 1998. On July 16 2007 Mr. McCartney was appointed a non-executive director of Datatec Limited a networking technology and services company. He had previously served as vice chairman of the board of directors of Datatec from October 1998 until May 2004. Since December 2003 he has served as chairman of the board of First Circle Medical Inc. a privately-held medical therapy company. From June 1997 to March 1998 he held the position of president of 3Com Corporation's Client Access Unit. He joined the executive management team of US Robotics in March 1984 as vice president and chief financial officer and served in various executive capacities until serving as president and chief operating officer of US Robotics from January 1996 until its merger with 3Com Corporation in June 1997. Mr. McCartney is a certified public accountant. | 