It flashes the green led 3 or 4 times in the first second of powerup, and dead, so I assume the sd card is now trashed. This was rasbian, running a special pre-empt-rt kernel. Where can I find some help? Thanks. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene>