This past Sunday my black MacBook (running Mountain Lion) got hung up while I was searching the web. I had to shut the laptop down by holding the power button, and when I restarted I got a white screen of death. I went through all the suggestions on the Apple support page but nothing worked so I dropped into the local Apple store and, as the nice girl at the Genius Bar could not get the drive to mount, I was told that the drive is more than likely dead. She suggested that I get an enclosure and see if it would mount if it was not being used as a boot drive; I just tried this and, sadly, it did not work. Does anyone have any secret tips to get a troublesome drive to mount? The drive itself is quite small (180 gigs, I believe) and, really, all I need are a few important items. If I could get it to mount at all, even for less than an hour, I'd be able to copy what I need. I got a few quotes from some data recovery companies and they range from $500 to $1300 or so, which is TOTALLY out of budget for me. I haven't backed up in a while, and the the thought of not getting my important files back is making me sick. I know, I'm an idiot. Any tips would be very much appreciated.