I haven't been able to reinstall OS-X on it at all. It takes 45 minutes from the time I say install to the time it gets only 1/10 of the bar across of the installing part and then fails. I am able to format the HD, and partition it. This HD came out of another laptop of mine that I sold and was working fine. When I first tried this and did a time keeper restore, the laptop kept freezing and it took 5 hours for it to restore. Now I can't get OS-X installed. So I am a bit confused what is going on here. Anyone have any ideas?