Display half black and half white.. help please?

Hi there,
I was wondering if anyone can help me with this. Recently, (sometimes) after i start my powerbook up or awake it from sleep.. the display instead of white... it's half white and half black. Top half is white and I can see the apple logo (startup) or the desktop (sleep). The bottom half is completely black. And gradually the the black disappeared. Is my display card screwed?
Thanks.

My guess is that you have a backlight going bad. Miniature fluorescent tubes provide the backlight; I think at least two, perhaps top and bottom. You would have a slow starting bottom tube. AFAIK, this is not an easy or cheap repair. Most folks would replace the whole display, although it's probably possible to take the display apart and replace the tube.
If an external display connected to the computer works OK, the video card is likely fine.

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