Stocks Set for Lower Open, Earnings Weigh  NEW YORK (Reuters) - Stocks were seen opening lower on  Wednesday after investment bank Morgan Stanley &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=MWD.N target=/stocks/quickinfo/fullquote"&gt;MWD.N&lt;/A&gt; said  quarterly profit fell, while a brokerage downgrade on  bellwether Cisco Systems Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=CSCO.O target=/stocks/quickinfo/fullquote"&gt;CSCO.O&lt;/A&gt; could hurt technology  stocks.