Hi Kristen, I did try to boot into single-user mode, but as I mentioned, none of the post-firmware booting proceeds. I am stuck at the gray apple screen _without_ the spinning progress wheel... it's not that the wheel appears and doesn't move, it doesn't even show up at all. That tells me that the post-firmware portion of the boot process is not even starting. So, in short, I can't boot into single-user mode. --- Amir On Thu, 23 Feb 2012, Kristen R wrote: > Amir, > > Have you tried to boot into single user mode yet? > > If so, what are the messages? The final lines should provide a hint > > Kristen