Pixelated Screen - shimmering green and pink

I posted this over in the display forum but im not getting much help over there. thought i would post here and get a bigger crowd.
anyways, on my ibook, the screen is very pixelated. it reminds me of when you put a video card in a pc and there are no drivers installed for it. there is a shimmering green and pink effect all over the screen. mostly in the shadows though.
i have already tried to adjust the resolution and colors. nothing changes the way it looks. current setting is at 1024x768 with millions of colors selected.
i took a screen shot and transferred it to my pc and opened it in Photoshop. The screen shot looks flawless and none of the above symptoms are there.
so is the LCD bad? maybe the inverter?

If you have the external video adapter, as included with the iBook when new, you could check the non-LCD
components to some extent by seeing if you can run an external display; and if the images view correctly,
the internal display has secondary issues that can be further troubleshooted by you or a tech.
There are some software utilities out there which may work to help use an external display; but I don't use
them and so can't recommend them. A few were not supported officially, but people used them in iBooks.

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