Krispy Kreme's Board Members Lead Probe  LOS ANGELES (Reuters) -  Krispy Kreme Doughnuts Inc.  &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=KKD.N target=/stocks/quickinfo/fullquote"&gt;KKD.N&lt;/A&gt; said on Monday it appointed two new directors to lead  an internal investigation of accounting practices and other  matters now the subject of a probe by securities regulators.