I've had 2 boards now Rb411 that I hold the reset button down during boot and other times without any luck. I've taken the enclosure off and tried the metal in the hole of the reset jumpers and tried to just close the contact during boot etc.. NOTHING will reset the passwords on these boards.

Any ideas? What am I doing wrong?

try connecting RB over serial cable and follow instructions at http://gregsowell.com/?p=298