First Enron Criminal Case Set for Trial  HOUSTON (Reuters) - Nearly three years after Enron Corp.'s  &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=ENRNQ.PK target=/stocks/quickinfo/fullquote"&gt;ENRNQ.PK&lt;/A&gt; dramatic collapse into bankruptcy, the first  criminal trial against the disgraced energy company's former  employees is set to kick off on Monday.