Demon,
Here's an example:

Code:
Define  OSC 24

ANSEL = 0    'All ports digital
ANSELH = 0   'All ports digital

TRISC.3 = 0

pause 100


loop1:
      DTMFout PortC.3,[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15] 
   Goto loop1

As you can see, very simple example with no calls to assembler or anything complex. The simple sample programs provided with PBP3 also produces the same error too.

Thanks,

Troy