Strange Vertical lines and pixelation issues with my Powerbook screen...Hel

Question

I have got a problem with mt LCD screen which now permanently displays lines of "dead" pixels, but they can't be dead because they chaneg all the time. If I move a window, I get lots more, which are created by the edge of the window, like a ghosting? Does that make sense?
I have taken a screen grab, but not sure how to feature it in these forums. Anyone got any ideas or know about this problem?
I have had a similar problem with this and other laptops, but it has always been a temporary thing before, when I had overloaded the system or something, and I got 'ghosting' from the trailing edge of a window, but this is permanently there?

Answer 1

I have now attached a monitor to the PB, and it happens on the monitor too...maybe suggesting something wrong with the graphics card or logic board, rather than the screen itself. When I type this message, I get strange red 'ghosting' lines where the cursor moves across the page.It reminds me of the 'Etch-o-sketch' game, where you draw lines, and then wipe them off. I can move a window from left to right and get these ghosting lines. When I move the window back right to left, they erase the lines to the left of the window, but I get more to the trailing right edge of the window...i.e. on the right of the screen.
Scrolling also removes these pixels, but creates new ones elsewhere.
Any ideas?