If you go to AllPrograms>oracle Business Intelligence > and click on start BI services.
and see the Following error when the browser is launched
Don't be panic. Nothing wrong with your installation
Solution : 1) Just refresh your browser. You will be able to see the Login screen.
locate the service Oracle Process manager (Instance1) and start it.
Refresh the web browser using the same url that gives the error.
Reason : When you try to start the services, some services like oracle Process manager is still in starting mode where as the weblogic server launces the webbrowser prior to starting all the related services.
Refreshing your browser (or) Starting your services like OPM ( Oracle process Manager ) will resolve the Problem.