GnrcMan writes "According to this news.com article, "windowing", a method of fixing Y2K bugs where there is a window (IE 00-39) of years recognized as being 20xx years, has been patented by McDonnell-Douglas. They are now threatening to sue Fortune 500 companies using this popular (and common sense) technique." The years not updated are considered to be 19xx for those systems. *sigh* I love patents. Honest. Really.