I am a bit desperate here, my mini I have been discussing in another thread, things have gone from bad to worse, it shut down again, and now it will not boot, it does the chime sound and then just powers off, I have tried pressing command plus option, command plus r to try to get into disk utility and recovery modes, but it cannot get past the chime it shuts itself right off. I also tried unplugging my Wacom, unplugging my usb hub before startup, same thing, it shuts down. Also tried plugging power cord into a different outlet, same thing happens. I felt it after the shut down and I don't think it was very hot. It did not feel that hot to my hand. I have time machine backups, and I keep most of my important data on external hard drives. But if the hard drive is dead, I would like to get some of my data off it before ditching it. As I previously mentioned I cannot get the back off, I know it is supposed to come off easily with a twist, but mine is as if it is glued on.