jsp program is not executing

hi,

i am using Apache tomcat.

so, when i am executing servlet it is executing successfully.
But, when i am executing jsp program, it is giving me error :

type Status report

message Servlet jsp is not available

description The requested resource (Servlet jsp is not available) is not available.

i reinstall tomcat, but same problem..
i also set servlet-api.jar, tools.jar, jasper.jar in classpath , but same problem...

So, what is that ?
pls, help me.....

Where is your JSP?
What is its name?
What URL are you using when trying access your JSP?

i am executing sample examples from tomcat home page.....
i.e. http://localhost:8080/

JSP and Servlet Examples on above link...
i also try my programs which is on Web-apps\Test\test.jsp
but same error....

( when i install Tomcat everyting was fine.....
after that i install weblogic .......
and after somedays when i again worked on tomcat, then problem occurs...
i also set classpath....but nothing.....)