Altiris Falls 7 Percent Before Bell  NEW YORK (Reuters) - Shares of Altiris Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=ATRS.O target=/stocks/quickinfo/fullquote"&gt;ATRS.O&lt;/A&gt; fell 7  percent before the opening bell on Tuesday a day after it  posted disappointing earnings.