so i have a macbook it came with 10.4.6 osx. it was runing slow so i wanted to restore the os to a clean start. i dont have the osx cd that came with my mac so i borrow one off my buddy who have the same mac book. i reboot hold c the installer comes up and then it say it cant install on to my mac. so i thought i need to erase the hdd so i did. BIG MISTAKE now i dont have a OS and the CD installer still say it cant install onto my mac...if anyone noe a way Plzz help a noob out thanks..