Hello, I am not a MAC guy but am trying to assist a family member. When booting it goes through the grey screen but halfway through turns orange. Model: A1186 EMC: 2180 Serial: G88403G7XYL Graphics: NVidia GeForce 8800 GT From what I can surmise I think this may be a bad video card, and if so it's a relatively easy and cheap fix. Before I direct them to purchase a new card however, I wanted to run this question by the community to see if there could be anything else that may be wrong, or that I can do. Thank you.