Hey i just got my AAO the other day and deleted windows and installed ideneb 10.5.5 on it. When I go to boot i get the apple screen and the rotated thing towards the bottom but after a while i get a circle with a line through it. Can somone help me fix this. Also if somone could point me in the direction of a tutorial on installing ideneb 10.5.5 onto the AAO that would be appreciated too. Thanks in advance :)