The major U.S. index futures are currently pointing to a roughly flat open on Friday, with stocks likely to show a lack of direction following yesterday's downturn.The futures had been pointing to further downside earlier this morning but have climbed back near the unchanged line amid uncertainty about the bank credit concerns that emerged during Thursday's session.Shares of Jefferies (JEF) are jumping by 4 percent in pre-market trading after Oppenheimer upgrade its rating on the investment bank to Outperf ...