Stocks climbed at Thursday's open, boosted by upbeat forecasts from technology bellwethers Yahoo Inc. and Dell Inc. and solid earnings results from blue-chip company General Electric Co. An unexpectedly big drop in weekly jobless claims also helped bolster sentiment on Wall Street, as it gave fresh evidence that the job market is finally turning the corner. The Dow Jones industrial average <.DJI> was up 71.61 points, or 0.67 percent, at 10,550.83. The Standard & Poor's 500 Index <.SPX> was up 8.41 points, or 0.74 percent, at 1,148.78. The technology-laced Nasdaq Composite Index <.IXIC> was up 24.53 points, or 1.20 percent, at 2,074.77.///www/.com