Alright, so my hard drive died a week ago and i bought a new one. i am positive that i have installed it correctly. but when i run the install discs, after i choose english as the language, it says "Mac OS X cannot be installed on this computer". I am using the install discs that my macbook came with. i have tried following many online tutorials that involve partioning and formatting but i can't seem to get it to work. Advice is greatly appreciated.