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I invite you to discuss your thoughts here. By contributing to these discussions you are helping to make the Internet (and hopefully this site) a forum for open and intelligent discussion. ok, now for the Fine print ... by submitting your comment here you grant CAD bloke a perpetual license to reproduce your words, name and web site in attribution. Personal attacks & unwarranted profanity won't be tolerated. You may edit your comment within four hours of posting it.