After the strong gains in March, which helped most of the major averages wipe out the deficit for the year, the mood has turned somber. The major U.S. index futures point to a modestly lower opening on Friday. Commodities are sticking to their nervy run, with oil and gold currently modestly lower. The dollar has turned mixed ahead of the key monthly non-farm payrolls data. The data is expected to show that job gains for the month are in line with the recent fairly robust clip and the jobless rate is expected to stay steady.