@deal2deal:U.S. stock futures were flat Thursday night after the S&P 500 snapped a four-day losing streak. Dow Jones Industrial Average futures fell by 22 points, or 0.07%. S&P 500 and Nasdaq 100 futures dipped 0.03% and 0.11%, respectively. Boeing shares slipped more than 2% in extended trading after the company temporarily halted delivery of its 787 Dreamliners over a fuselage issue. During Thursday's session, the S&P 500 advanced 0.53%. Meanwhile, the Dow Jones Industrial Average gained 108.82 points, or 0.33%, while the Nasdaq Composite rose 0.72%. Even so, the major averages are headed for a losing week. The S&P 500 is down 1.64% through Thursday, and is set for its worst week since Dec. 16. The Dow is down nearly 1.99% this week, and headed for its fourth straight losing week. T