Crap! Code that worked fine under 4.12.00 don't under 5.00.00
I have an initialization routine called INIT.  Invoked like:

INIT code

     ; xxx more code
     return

     END

And ya know what?  The linker places that code at 2002 hex.
Guees what?  That's outside the address space you can address.
Bitchen, huh?

Back I go to 4.12.  This sucks!

-Walt...