David Einhorn

An influential hedge fund manager David Einhorn raised a question of dismissing Steve Ballmer from the position of a CEO of Microsoft. The response of Microsoft Corp's board was that it supports Ballmer and has no plans to replace him.

"His continued presence is the biggest overhang on Microsoft's stock," Einhorn told fellow fund managers at the annual Ira Sohn investment Research Conference in New York.

Microsoft's nine-person board, including Chairman and co-founder Bill Gates, supports Ballmer, a source close to the board told.