Foglight login screen - when attempting login, get "Invalid Username and/or Password".  (71399)

Foglight login screen - when login, get "Invalid Username and/or Password".  I see in the FMS log the following message at the time I'm trying to login:

2011-03-10 18:34:36.667 ERROR   [http-0.0.0.0-8080-60] org.apache.catalina.connector.CoyoteAdapter - An exception or error occurred in the container during the request processing
javax.servlet.ServletException: Other than post method to j_security_check is not accepted
 at com.quest.nitro.web.tomcat.RequestEncValve.invoke(RequestEncValve.java:57)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
 at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
 at java.lang.Thread.run(Thread.java:619)

The "j_security_check is not accepted" usually points to a stale webpage / stale browser.

Clear the Internet browser's cache and completely close out all browsers on this machine.  Then, reopen browser and re-connect into Foglight Admin Console (http://FMS_HostnameOrIP:PortNumber)

You can also test this by logging into Foglight Admin Console from a different machine.