[ubuntu] Black Screen + Blinking Cursor From Burned DVD (MAC)

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http://ubuntuforums.org – Hi forums. First post, sorry it had to start out with a problem. I have Ubuntu running fine on my desktop and a few other computers, but my Mac doesn't seem to want to cooperate. Goal: I'm trying to install Ubuntu Desktop 12.10 (ubuntu-12.10-desktop-amd64+mac.iso) on my Macbook Pro 9,2 Problem: When I'm at the Apple/rEFIt boot manager screen, and press enter over the linux CD icon the disc spins up and the screen goes black. It then stays black, but a blinking cursor appears in the top left. There are no options on screen, and it is completely unresponsive to any sort of combinations of keys (Hardware)