Hi Joe,
It was a power issue.
By putting a 5 second delay at the start of the main() loop and a new power supply at 6Volts DC at connector X2 (FEZ Cobra) , i read 240mA before the Red Pine module activates and 300mA when activated.
My recommandation is to have a power supply that can at least give 6Vdc , 500mA . Just to be sure.
Jean-Francois