I have a Ibook and recently changed the Logic board. I am now getting the screen boots to a light blue with a black apple logo for a few minutes then it goes to a black screen and black arrow with white border. Can anyone shine some light on ths matter for me. Thanks
This would indicate a problem either with the video controller or you have not attached the screen cables correctly to the logic board. Check that no cables have been bent or clipped incorrectly. Was this logic board tested before it was installed?