After experiencing major problems with billing and collections due to converting to a new software system, Miami-based Jackson Health System announced that another software conversion had led to mistakes in the paychecks of 7,844 of its active 11,900 employees. Some were paid too much, others too little. Overall, the system will spend an additional $1.6 million to get employees paid correctly. Jackson is already on course to lose $229.4 million this year unless drastic steps are taken, the Miami Herald reports.