Steve, I must have something wrong in the config switches above. The LED is blinking more than twice as fast as it should. This is the test code:

'define LOADER_USED 1
LED1 VAR PortD.1
START: HIGH LED1
PAUSE 1000
LOW LED1
PAUSE 1000
GOTO START
Finish: end

I am using a 20MHz external oscillator. I would like to be able to use slow speed USB on this device later. Do you see something I missed in the config?

Robert