Mid-2009 Macbook Pro Using computer just fine all day, never any issues or overheating or trauma. Opened it up from sleep and it lagged-out trying to log in. Restarted the computer and it couldn't find OSX (folder with question mark on it). I've swapped out my HDD into a friends macbook pro and it boots and works just fine in his. Tried his harddrive in mine and same issue. Is this a logic board failure? I can boot into recovery mode with my Time Machine backup and go through all operations there except re-installing OSX because OSX can't find a drive to install on. Using disk utility with my OSX recovery disk doesn't show the internal hard drive either. Logic board failure?