US STOCKS-Futures point to modest losses on Wall St after GDP data
* S&P 500 closed at record Thursday, on track for strong Feb
* Fourth-quarter GDP rises 2.4 pct, below estimate
* Citigroup lowers 2013 profit as a result of fraud
* Salesforce.com raises revenue outlook, shares up
* Futures down: Dow 6 pts, S&P 2 pts, Nasdaq 2 pts
By Ryan Vlastelica
NEW YORK, Feb 28 (Reuters) - U.S. stock index futures pointed to a slightly lower open on Wall Street Friday, with the S&P 500 coming off a record close and after the U.S. government slashed its estimate for fourth-quarter economic growth.
* GDP was estimated to have grown at an annual rate of 2.4 percent in the quarter, the Commerce Department said, down sharply from its estimate last month of 3.2 percent growth, and 4.1 percent in the third quarter. Analysts had expected growth of 2.5 percent.
* The report was the latest in a string of indicators to come in below forecasts, which many analysts have pinned to a severe winter rather than worsening fundamentals. Stocks rose on Thursday after Federal Reserve Chair Janet Yellen indicated support for this theory. Continuación...