 Software update to Windows systems. ABC's Morgan Norwood. We met Sol Slotman and her family at New York's LaGuardia Airport today. Their flight to West Palm Beach canceled. It's frustration. Now rebooked on another flight leaving from a different airport. This has got to be a huge inconvenience. Yes, huge. Across the country today, more than 6,000 flights delayed. More than 1,700 canceled.