Wal-Mart Sees Nov. U.S. Sales Up 2-4 Pct  CHICAGO (Reuters) - Wal-Mart Stores Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=WMT.N target=/stocks/quickinfo/fullquote"&gt;WMT.N&lt;/A&gt;, the  world's largest retailer, said on Saturday that it still  expects a 2 percent to 4 percent increase in November sales at  its U.S. stores open at least one year.