Thanks for the quick response! When booting up it would get stuck for hours with the status at 100%. I tried booting from cd, safe mode, dumping the ram, literally everything and nothing worked. Apple customer service tried to help but ended up sending me to the apple store nearby. There, the genius did some sort of a disk repair which didn't work eiter and he told me that it was an HD problem which requires replacement. I haven't decided what to do yet. Also, ever since i took it to the genius, it doesn't Gen get to the status bar, it gets to the grey logo screen, stays there for 30 seconds and turns itself off.