Innovation First has released a new set of Default Code for the EDU RC (12-15-2003). The only change is to the old line 54 of the user_routines_fast.c file. The change fixes a bug in which "interrupt" should have read "interruptlow". It also shows an example of how to save some extra context if you are using interrupts.
This is only an example, and depending on your interrupt code and practices, you may need to save additional context on this line, in accordance with section 2.9.2 of the "MPLAB(R) IDE C18 C Compiler User's Guide" (page 28).
Documentation and Files are located at
http://www.innovationfirst.com/FIRST...umentation.htm