Hello. I bought a macbook 13´´ eaarly 2010 and so far so good. Excellent computer. Perfect in every way. Until today. I´ve got two systems on mine. I have Mac oSX and i have windows 7. I was on my windows os and wanted to go to mac osx to change somethings in itunes for my ipod touch. when i went to bootcamp to restart on mac osx it restarted but the apple logo appeared and the rolling thing but it didn´t go any further. Also a kinds load/status bar showed up on the bottom. After about a minute it shut down on it´s own. Tried command & s, and the code /sbin/fsck -fy but nothing worked. Tried booting with mac osx install disc using c key and nothing again. Tried using option key to boot to install cd and mac osx and nothing. It only boots to windows 7. My problem is just like the one on this video: Boot Problem