Recently installed Tomcat, when I issue run command I get the following:
 Thread main JAVAX.XML.PARSER.FactoryConfigurationError 
JAVALANGUAGECLASSNOTFOUNDEXECUTION with some 
ORG.APACHE.CRIMSON.JAXP.SAXParserFactoryImp type errors.

Also,when I issue a start command a message 'TOMCAT STARTING IN NEW 
WINDOW' appears but nothing happens. 

Anybody have any ideas?  Thanks, Henry