Yesterday, I was just using my macbook (13 inch, 1.83 GHz, late 2006 model), and it suddenly just froze on me. I turned it off and when I attempted to reboot, it was stuck on the gray screen with the apple and spinner below it. After several minutes it finally went to what looked like a dos screen, (all black with white font) and proceeded to go on about "i have no name!" It then tried to restart sever al times but to no avail. This is when i decided perhaps a OS X reinstall was in order. I attempted to do this but, it failed 2 times in a row. I then decided to completely wipe the hard drive, but oddly enough I can neither wipe it nor verify it, due to a "unable to unmount" error. This pretty much has me stuck. I read something about kernel panics so I tried restarting with different RAM modules, but it did nothing. This is the exact hard drive that the macbook came with http://www.newegg.com/Product/Product.aspx?Item=N82E16822149054 Any help would be greatly appreciated because it's really starting to worry me now that all my options are seemingly gone except for buying a new hard drive.