A few days ago I got an old Macbook Pro (From 2007, model A1226), and I've tried to install Windows through Boot Camp. However, no matter what I try I can't install it. I'm stuck in the part that says "No bootable device - insert boot disc and press any key". Screen won't recognize USB stick or DVD disc (the machine won't read installation DVD, game CDs and DVDs work just fine). I'm getting slightly frustrated with this and running out of ideas, so any help will be appreciated.