EX-24 3 coxpoa.txt POWER OF ATTORNEY POWER OF ATTORNEY Each person whose signature appears below hereby constitutes and appoints Donald R. "Scotty" Walsh and Beth O. MacLaughlin as his attorneys-in-fact and agents, each acting alone, with full power of substitution and resubstitution, from such person and in each person's name, place, and stead, in any and all capacities, to sign any and all registration statements, amendments (including post-effective amendments) to any registration statement, or, with all exhibits thereto and all documents in connection therewith, as well as any Form 3, 4 or 5 under Section 16 of the Securities Exchange Act of 1934, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite or necessary to be done as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof. Name Title Date ______________________ Chief Executive Officer July 31, 2003 Donald R. "Scotty" Walsh and Director ______________________ Chief Financial Officer July 31, 2003 Beth O. MacLaughlin ______________________ Chairman of the Board July 31, 2003 W. James Hindman ______________________ Vice-Chairman of the Board July 31, 2003 Henry D. Felton ______________________ President and CEO July 31, 2003 Eric Pratt ______________________ Director July 31, 2003 Eugene J. Fischer ______________________ Executive Vice President July 31, 2003 Scott N. Fischer ______________________ Director July 31, 2003 James A. Fanella ______________________ Senior Vice President July 31, 2003 Debra Keith ________/s/____________ Director July 31, 2003 George Cox