Wal-Mart Cuts Sales View; Stock Dips &lt;p&gt;\&lt;/p&gt;&lt;p&gt; By Emily Kaiser&lt;/p&gt;&lt;p&gt; CHICAGO (Reuters) - Wal-Mart Stores Inc. &lt;WMT.N&gt; lowered\its August sales forecast on Monday because of disappointing\back-to-school demand, casting doubt on the strength of U.S.\consumer spending in a key shopping season.&lt;/p&gt;