A 10-coin slot jackpot that did not pay off could cost Harrah´s North Kansas City Casino and Hotel a $50,000 state fine.The Missouri Gaming Commission last week levied the fine in a proposed disciplinary action that alleged Harrah´s failed to properly update slot machine software as recommended by the manufacturer and the state´s slot machine testing lab.In September, a player hit a winning combination of symbols that, according to the game´s posted prize list, was worth 10 coins. Because of the older software, however, the player received nothing.When the player complained to casino officials, a gaming commission investigation found the software problem.Under commission rules, casinos have 30 days to pay a fine or challenge a disciplinary action. A Harrah´s official had no comment.The gaming commission last week also settled three longstanding disciplinary cases against the Isle of Capri Casino in Kansas City.Isle officials agreed to pay reduced fines totaling $165,000 for incidents dating to 2001. The commission had alleged Isle:- Failed to promptly report to the commission a patron´s complaint in September 2003 that her purse had been stolen.- Failed to promptly report to the commission a patron´s complaint in May 2003 that another patron had threatened him with a knife, and in June 2003 failed to promptly report a patron´s attempt to enter the casino using a false ID and then becoming disruptive.- Failed to promptly notify the commission in October 2001 that a casino security agent had taken a patron into custody for questioning about his alleged "capping" of a bet. That unlawful act of adding chips to a closed wager is a felony.