Belo Takes Charge for Advertising Refunds  NEW YORK (Reuters) - Media company Belo Corp. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=BLC.N target=/stocks/quickinfo/fullquote"&gt;BLC.N&lt;/A&gt; on  Monday said it would refund \$23 million to advertisers because  of a circulation scandal at its Dallas Morning News newspaper,  resulting in a charge against earnings in the current quarter.