ly Isolation page of the NUnit Settings Dialog.
   <li><b>Single</b> means that all tests will run in a single test domain
       created by NUnit. This was the way versions of NUnit prior to 2.4
	   ran tests.
   <li><b>Multiple</b> means that each test assembly is loaded into a
       separate AppDomain. This setting is not available when Multiple
	   processes are selected in the Process Model dropown.
   </ul>

<h4>Configuration</h4>
<p>This dropdown list allows you to select the particular configuratio