Diebold Inc. demanded that cable network HBO cancel a documentary that questions the integrity of its voting machines, calling the program inaccurate and unfair. The program, Hacking Democracy," is scheduled to debut on Nov. 2, five days before the 2006 U.S. midterm elections. The film claims Diebold voting machines aren't tamper-proof and can be manipulated to change voting results. "Hacking Democracy" is "replete with material examples of inaccurate reporting," Diebold Election System President David Byrd said in a letter to HBO President and Chief Executive Officer Chris Albrecht. "We stand by the film," HBO spokesman Jeff Cusson said in an interview. "We have no intention of withdrawing it from our schedule." This is Diebold's second defense of its system since last month. On Sept. 26, Byrd wrote to Jann Wenner, editor and publisher of Rolling Stone, saying a story written by Robert F. Kennedy Jr., "Will the Next Election Be Hacked?" was "error- riddled" and that readers "deserve a better researched and reported article." The documentary is based on the work of Bev Harris of Renton, founder of BlackBoxVoting.org, which monitors election accuracy. Harris says on the HBO Web site that she found "secret program files" used by Diebold for its electronic voting machines. Harris copied them and distributed the programs to others as a way to show the vulnerability of a system designed to safeguard voting, according to the Web site.