Interesting technical page about LCD screen any hints about new 15" screen?

Question

I came across this interesting page from another website discussion:
http://www.techmind.org/lcd/index.html#inversion
From what I see I would have thought that the displayed Row Inversion, but my screen flickers on "Line-paired RGB sub-pixel dot-inversion" test:
http://www.techmind.org/lcd/dotinvrgb2l.html
Try this one or the offset based on your window position and see if you see strong flicker. I also found this interesting paragraph:
"The inversion pattern for any given screen will inevitably flicker to some extent and is not a fault. If it really flickers a great deal then it may indicate that the common-electrode voltage has not been set up properly. In that case you might also perceive a "dot crawl" effect on plain colours of medium brightness. A grossly mis-set common-voltage will also make your screen more susceptible to temporary 'image sticking' problems.
Common-electrode voltage can sometimes be adjusted by means of an internal preset, or on a manufacturers' configuration screen (adjust for minimum flicker on the inversion-pattern) ...but doing so would almost certainly invalidate your warrantee. Typically, with the optimum setting, the centre of the screen will have minimum flicker on the inversion pattern, while the flicker will increase somewhat towards the left and right edges. If there's a distinct minimum anywhere on the screen, then the setting is pretty close. Note also that the optimum setting is likely to drift over the life of your screen, and may be slightly affected by temperature and the greylevel of the test pattern. "
Does this give anyone a clue whether this may be a software or hardware issue? As I've said before I am fine with my 15" powerbook display, but am very curious from a technical standpoint.

Answer 1

My new powerbook 15" is out of reach now , because it is in its original box at my working place ready to be picked up by TNT for an AppleStore return.
I am currently sitting in front of my other -personal- PB15" 1280X854 (received in August : obviously line-less). The second link gives me a non flickering screen, but the screen flickers when I move the window.
As I understand, the test tells you only how the Display handles the inversion scheme. The way it handles it is specific from the screen. This does not mean - in my understanding- that there is a problem with the screen itself.