Can anyone help me with Mac OS X installation? I have this Mac OS X from a friend, the problem now is that it has some problems with the OS X and I think I need to reinstall or recover the OS X back to it's original state. And now the real problem is now, I don't know how to install or recover the OS X back and is there any CD/DVD provided? If there is, my friend already lost the CD/DVD. Anyway to recover or install the OS X again without the CD/DVD?? Thanks in advance.