Hey all- I have an early 2008 ('Penryn') MacBook Pro that I've been using as a secondary machine in the office. Recently it decided that it did not want to start up- just shows the flashing ? folder icon. Have tried zapping the PRAM already. Popped in the original 10.5.2 restore disk and tried to boot using that. Holding down C yields nothing more than a white screen, Opt yields nothing more than a cursor. Tried a Mountain Lion USB drive. Holding down Opt shows the yellow (external) Mac OS X drive, but hitting Enter doesn't do anything. It sounds like a hard drive failure to me, but I can't verify that without getting into Disk Utility.. and this has me concerned that there's a bigger problem than just the hard drive if I can't even boot into a recovery drive. Fortunately I have everything backed up so I'm not concerned about losing my files, I just don't want to go out and buy a new hard drive for nothing Many thanks.