Following http://www.google.com/url?q=https%3A...rYcFnvH0qdRmEA I have removed OSX from my MacBookPro 7,1 —those SSD are so small!— and then installed Natty on it.
However, now I can't boot any CD: I have tried with "C" and "option" keys, but the laptop always ends up booting on the HD. I will definitely have to boot a CD someday (e.g. to reinstall OSX when I have to give the laptop back), so I need to fix this. Any idea? Thanks in advance.