Toys R Us Posts Operating Loss  NEW YORK (Reuters) - Toys R Us Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=TOY.N target=/stocks/quickinfo/fullquote"&gt;TOY.N&lt;/A&gt;, which is  considering getting out of the toy business, on Monday posted a  second-quarter operating loss on poor sales of video games and  markdowns on older merchandise.