I just bought a new unibody Macbook Pro 15 inch 2010. Untill now, everything seemed to be good, but after I insterted a dvd, in which i put my files from windows 7 (pictures, some documents, videos...), every frikking thing i do, mac is asking my password. it makes me so mad that i am about to throw it out of the window. i copy the files from dvd and even after i eject the dvd i am not able to move it, rename it, nothing, nothing, without the password. PLEASE PLEASE PLEASE PLEASE, HELP ME GUYS!!!