I¹ve fixed it.....phew My lovely Dual¹ 1gHz powerbook is alive again ;) I had to fiddle around writing into the firmware for 4 hours but its back!!! Anyone who ever has this problem try this: http://www.bombich.com/mactips/openfirmware.html After reading these: http://www.netbsd.org/Ports/macppc/faq.html http://www.netneurotic.de/mac/openfirmware.html Many thanks to those who helped. Alex