I'm using MicroCode Studio to burn the chip and I use the configuration settings provided by the software. Other than that, the only line dealing with the oscillator setting in my code is the DEFINE OSC 20 (PicBasic Pro). I can't post my entire code here because it is over 15,000 lines long. I'm driving a graphical LCD with the PIC. Concerning the header info you showed in your response, what language is that written in?