Vertical blue green lines on Tecra M display

I have blue-green vertical lines on my laptop monitor.
They only seem to be present when I have a white background (such as a web page).
The lines go away when I move my mouse over the screen and reappear when the cursor moves. I have no lines on video or pictures, just white backgrounds.
It's really annoying, please help.
I am using Win XP SP3.
I have a Nvidia geforce 6600 128M vid card.

Hey guys, I'm either thinking it's a VGA wire issue or the screen. I want to say VGA cable, bc in MS paint, when I filled the screen with different colors, the only colors that have lines through them are: White, Yellow, Red, and Beige. Orange did as well, but only slightly.
I tried moving around the screen, same result in all quadrants of the screen. This happens with similar colors in photo's and video. Typing a paper for my classes is really annoying because of these lines, arghghgh. . .

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