I returned two MBPs (glossy & matte) back in June 2007 because of the yellowing issue. I figured I'd wait a while in hopes that the issue would be resolved. Well, I just bought a new 15.4 MBP Penryn (matte, 9c81). I don't notice a yellow tint, however I do notice the bottom third of the screen is slightly washed out or even darker (when viewing whites). This is my third MBP and I'm pretty much sure no matter how many times i return it i'll be stuck with the same situation. So I'll probably end up keeping it. I'm just curious if others experience this (non-yellow) and are satisfied. Is it pretty much unavoidable? You can really tell by say moving the yellow sticky note pad thing in dashboard over the bottom and top portions of the screen. This was the basic test I used. Or if you even use the white portion of say the dictionary widget, you can see that it's darker on the bottom. Is this backlight bleed? Now I'm thinking it might be the viewing angle. If I do the same test but this time change my viewpoint I see a different result. If I put the yellow notepad on the bottom third of the screen but this time lower my viewpoint position (like head on with the bottom third of the screen) it still looks vibrant like the middle of the screen. Basically, I just want to know if others have this problem. Is it a defect, is it backlight bleeding, is it common? Thanks and sorry if this post doesn't flow too well, it's late and I'm sleep deprived.