So a few days ago... I first turned on my Mac and after like a couple mins or more, the apps auto-quit themselves(for noobs: quit by themselves) I already removed all my data to fix it(cause could not out how to use time machine yet.) and the disc I have is void or null, since there was a problem to it. Already set an appointment with the Genius Bar, so I was hoping I can get it fixed before then. Unless I can't have to wait until I go to the apple store. Any ideas what is causing the problem? An senior advisor suggests it's the hard drive(we sent emails back and forth for problems.)