Hey, ive finally decided to install Ubuntu on my pismo, and when I try to boot it, it just defaults to OS X. A while back, I replaced the DVD drive with a pioneer dvd burner, because the old drive died, so I don't have the old drive. I've tried also holding down option, when I do that, it starts to boot, but then the screen goes black and it just hangs. I've tried resetting the OF and the pram. Googling hasen't turned up anything. So any ideas would be greatly appreciated! Thanks!