* U.S. shares were set to fall at the open on Thursday, heading for a fourth day of declines, with tech stocks likely to slide after a warning on revenue from chip giant Intel (INTC.O: Quote, Profile, Research, Stock Buzz). * At 1109 GMT, futures for the Dow Jones DJc1 and S&P 500 SPc1 were down 0.5 percent and 0.6 percent respectively, with futures for the tech-packed Nasdaq NDc1 down 1.2 percent. * The Dow Jones industrial average .DJI slid 4.7 percent on Wednesday, while the Standard & Poor's 500 Index .SPX and Nasdaq Composite Index .IXIC both shed 5.2 percent, after the United States backed away from using its $700 billion bailout to mop up sour mortgages and added to uncertainty about how the government plans to revive bank lending. * Intel fell 7.2 percent after the bell after the tech bellwether warned its revenue would be about 14 percent below its previous forecast due to weak demand around the globe. [ID:nN12312939]. * Shares of Applied Materials Inc (AMAT.O: Quote, Profile, Research, Stock Buzz) jumped 5.5 percent to $10.50 in extended trading on Wednesday after the company's earnings beat Wall Street estimates. [ID:nWNAB2541] * Shares of NetApp Inc (NTAP.O: Quote, Profile, Research, Stock Buzz) leapt 3.5 percent to $10.75 in after-hours after the company posted second-quarter earnings that beat Wall Street estimates by a penny. * Five of the world's richest and most powerful hedge fund managers will face a U.S. Congressional panel that wants to know if the secretive industry poses risks to the financial system. * Companies reporting later include Wal-Mart Stores WMT, Kohls Corporation (KSS.N: Quote, Profile, Research, Stock Buzz), Nordstrom (JWN.N: Quote, Profile, Research, Stock Buzz) and Dr Pepper Snapple Group (DPS.N: Quote, Profile, Research, Stock Buzz). * On the economic front, weekly jobless numbers, and mortgage data, are due. (Reporting by Brian Gorman; Editing by Sharon Lindores)

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