I changed the header to
INCLUDE "modedefs.bas" 'Includes supoprt for PicBasic language
@ DEVICE pic16F88,CCPMX_ON

' Setup Crystal oscillator Frequency to be used by PIC chip in MHz
DEFINE OSC 20 'use external 20mhz crystal


and it is now working.

Ok... In the last couple of posts, the freq wasn't 10.8khz.
....really? I only see 10800hz in my post, where is the typo

k