This is part of the initial power up verification so some of these boards have not been programmed. We have added a resistance to ground on the XTALI pin. We have adjusted the load capacitors. We have varied the series resistance in the XTALI line going into the microprocessor. We have added resistance between XTALI and XTALO. We discovered some things on the layout that we would do different. For example we did not put a ground band around the oscillators. Any suggestions of clues would be appreciated.