I replaced my macbook screen assembly, and when i boot, it just shows a white screen. it still works plugged into an external monitor, and once started up, i can adjust the brightness on the lcd. just a side note, it was out of warrantee, and i was told that apple charges an astronomical amount for stuff like that, plus i am a computer tech, and know how to do stuff like this. just wondering if anybody has any idea what my problem might be... i'm thinking lcd data cable, i know it's not the power inverter, since the screen lights up, and the brightness adjusts. anybody have this problem fixed, and/or know the solution?