Clock Switching on PIC24
Thanks for anyone who was looking to help.

As I mentioned, I am using the PICC compiler from CCS on this project.  I should have known.  Their built-in-function "setup_oscillator" handles all of the unlocking and clock switching code.  Very nice compiler.

I tried the code using the XC compiler from Microchip using the suggestion of @Laszlo Valko and it works, so I must have had a problem in my ASM syntax in PICC.  I did not try switching directly from LPRC to FRCPLL.