Updated from 4:20 p.m. EDTThe major indices in New York fell as much as 1% Monday as markets, initially unnerved by growing reports of swine flu, rose off their lows only to succumb to light selling in the afternoon. The Dow Jones Industrial Average lost 51.29 points, or 0.6%, to 8025. The S&P 500 gave up 8.72 points, or 1%, to 857.51, and the Nasdaq fell 14.88 points, or 0.9%, to 1679.41. All three had been higher for a time. The Dow has only had two positive starts to a week in 2009. The strongest performer on the index, General Motors ( GM), rose 20.7% to $2.04 on new measures to qualify it for more government aid. The automaker said it will cut thousands more U.S. factory jobs by next year, phase out its Pontiac brand, and exchange some of its debt.