Hello, I bought a used Mac Book Pro 15' from a guy in the army that is leaving the state. I didn't get any dvd's or the admin password. He has left for his tour in Irac & I have no way of getting in touch with him. I have tried the reboot, then Apple/S, then sh /etc/rc, then passwd yourusername. Every time I type the new password, after the second time it just says "sorry". Please some one help I would love to do a reformat or something but I don't have a DVD. I spent over $1000 for this & don't want it to be a paper weight. Any help would be greatly appreciated.