David Einhorn’s Greenlight Capital is off to a not so great start for the first quarter of the year. The hedge fund’s reinsurance vehicle was up 0.1% according to data posted on the company’s website. For the first quarter, Greenlight Capital Re, Ltd. (NASDAQ:GLRE) was down 07.%. Most hedge funds have been struggling this year, according to a recent report from Goldman Sachs. In contrast, the S&P 500 (.INX) had modest gains in both March and for the first quarter of 2014. According to the Greenlight’s GLRE website: As of 28-February-2014, the largest disclosed long positions in our investment portfolio are Alpha Bank…