Dow Ends Lower as Wal-Mart Sales Drag  NEW YORK (Reuters) - Blue chips ended lower on Monday,  under pressure from disappointing Thanksgiving sales from No. 1  retailer 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;, while tech stocks drew  support from Apple Computer Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=AAPL.O target=/stocks/quickinfo/fullquote"&gt;AAPL.O&lt;/A&gt; and drove the Nasdaq  to its highest close in 10 months.