My disk isn't working right, basically it just spins around a few times then ejects. I've tried burning a new disk from an ISO but it does the same thing. So is there any way I can install it from a flash drive? I already put the ISO onto a flash drive properly, and created a partition on my hard drive that's fat32 formatted. But I don't know how I can start the installation from the flash drive. My computer is a late 2008 unibody MacBook.