Tomcat 4.1.2 jsps fail with JasperException

[Januski, Ken]

org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: -1 in the jsp file: null Generated servlet error:
[javac] Compiling 1 source file 
This is on a new install of Tomcat 4.1.2. This example fails at
localhost:8080. I can get the servlet examples to work by going directly to
them, e.g. localhost:8080/examples/servlet/index.html but the default page
and many others fail with the above error. Anyone have any idea where to
start looking?