OK, I'm finally on the PB tonight....had to do a couple of updates and then install Aperture, and after that I went ahead and made the crankycat photo my desktop. Ugh! Anyway, as someone else asked, what exactly is meant by "moving the image a pixel at a time" ?? Not sure how to do that! [Edited to Add: Nevermind, I figured it out.]
In just studying the image itself without moving anything it would seem that I DO have the lines, but they are very faint and it is quite difficult to see them unless I practically climb into the computer screen. A casual glance at the screen certainly does not reveal them but obviously the lines would still have an impact on the screen's overall appearance and presentation, making things subtly dimmer and darker than they otherwise would be or should be.
It is not enough of a concern or problem to me that I would return this machine. Although I've got PS CS2 and Aperture installed on it, I won't be doing any heavy-duty image manipulation on it -- the programs are there for quick-and-dirty processing of images shot when I'm on a trip.
I hope that Apple does come up with some sort of resolution (pun intended) for this issue, especially as it has affected some people's machines much more than others' and has had an impact on their usage of their new PB.
OK, Edited to Add: I have just checked things out on the ESPN site tonight and unlike the last time I'd done this, it was very clear to me that, yes, there is a problem with my PB. The lines in the line drawing on that site definitely move when I gently nudge the browser window up-and-down a bit. At the same time I went into the site with my iMac and did the same thing -- NO issues with moving lines. <sigh> And here I'd really, really thought for a long time that I didn't have the lines problem....
OTB