Hearing Set After Microsoft Rivals Quit &lt;p&gt;\&lt;/p&gt;&lt;p&gt; By David Lawsky&lt;/p&gt;&lt;p&gt; BRUSSELS (Reuters) - The judge considering Microsoft\Corp.'s appeal against European Union sanctions has called a\closed meeting for Thursday to decide what action to take after\two more major opponents of the U.S. software giant withdrew\from the case.&lt;/p&gt;