This excerpt taken from the MMR DEF 14A filed Apr 22, 2009.
What vote is required to approve each item?
In uncontested elections, our directors are elected by the affirmative vote of the holders of a majority of the shares voted. In contested elections (where the number of nominees exceeds the number of directors to be elected), the directors will be elected by a plurality of shares voted. Under our by-laws, all other matters require the affirmative vote of the holders of a majority of our common stock present in person or by proxy and entitled to vote on such matters, except as otherwise provided by statute, our certificate of incorporation or our by-laws.
Abstentions as to all such matters to come before the annual meeting will be counted as votes against those matters. Broker non-votes will have no effect on the voting calculations for the election of directors or the ratification of our independent auditor.