This is how it looked on my screen just before the replacement.
A few days before, it faded away and was barely visible for a few hours, but then it came back again.
So, it did change on my machine as well but as far as I can tell, it did not move.
Also, "a straight vertical line" of dust sounds strange to me. But who knows?
That's a lot how mine looks. It goes away when the machine is shut down for awhile. The hot-running hardware is too close to the screen and is not properly shielded. It's already been noted by several other users on here that it is NOT dust. I don't the think the smudges you or I have on the edge are as damaging as others who have grey haze areas dispursed about the screen that don't go away at all. Those are supposedly caused by LCD cells bursting from heat. But I'm sure the smudges on the edges can't be any better for the monitor. It's almost as if the heat is suctioning the backing to the physical LCD or something.
I find mine get more extreme if you use the CS6 suite or play graphics-intesive games like StarCraft II or Diablo III.
- - - - - >>>> DIY SOLUTION: Page 61 (2012_11_04 04:04 MacDalion)
Heck!... People will continue to add new posts here & the new victims of this problem who would be willing to try fixing it themselves will not want to browse through more than 60 pages of posts so it's useless...
This solution will get lost in this sea of posts...
And APPLE will keep on not caring...
Except that it doesn't really fix the issue. The grey smudges will continually re-appear. Not to mention, the average user is not going to be able to disassemble their iMac without destroying something. Don't get me wrong, I'm all for fixing computers yourself. But when you start introducing percise knife incisions and such just to fix a screen problem, that's a bit extreme for me, and I'm sure sever others on here would be hesitant to attempt that deconstruction process. And taking apart the 2009-2011 iMacs is immensely more complicated than acessing the hardware in a Macbook Pro or mini or Mac Pro tower.
If you guys really want to make a difference, google this issue and look for actions being taken online. And contact tech media blogs and insist that they cover this issue. Also include a link to this forum to show how many people it has effected so far.
The new iMacs look like they have properly-shielded screens, so if they are better, we at least deserve some sort of recall/trade-in offer for the newer models.
I have the LCD fail three times. Currently what Apple has told me is forget about the computer as it is meant to be disposed every three years. Unfortunately I have spent over three years days and days wading through support technicians disbelief disinterest and downright rudeness that I cannot see my myself coming past that to buy a new iMac.
I don't use the iMac in a dusty room near the sun. In fact tried everything. Best place is probably in the box it came and back to Apple so that they can dispose it off as they recommend.
Apples engineering and quality control with the Imac is below industry standards. Humidity is a normal environmental issue they should anticipate when they design and build a computer.
Sorry guys, I tried. I submitted my experience to Consumerist for the link that was posted. I tried to answer questions in the Reddit thread, but I got down votes on every post I made/question I answered except for 1 or 2.
It's hard to have a discussion when there's so many people who are convinced Apple has never made
a mistake. I love my Apple stuff, but they messed this up.
Your image isn't displaying. Never seems to work on forums for me either, but I've posted a couple of images side by side on my own site:
The one on the left is a very bad example of how it was, but it was a bit of a moveable feast. Some days worse than others (presumably dependent on heat), and the wiggle would shift and vary. On occasion it would be straight, as shown in the image on the right. Not exactly vertical, but pretty straight, at an angle.
The only thing I could think of would be that some magnetism was controlling the movement, which pulled in equal amounts sometimes, making it straight. I say that, but really I don't have a clue!
The image on the left does look as though something is cracked, but obviously cracks don't tend to move around!
And I suspect there are different issues - my case was less of a smudge, and a much more definite line.
I have just noticed a grey mark on my MacBook screen. It can only been seen on dark/black images and appears to be behind the LCD itself. It's almost a rectangle box around where the Apple logo is on the outside of the aluminium lid. It almost looks a bit blotted. It certainly doesn't follow the shape of my screen backdrop or anything graphical so sure it's not screen burn and something more inherent.
The thing is my MacBook is a few years old now, but that said it has been looked after with the utmost care and here in the UK the Sales of Goods Act does cover manufacturer defects for up to six years, so I might have a chat with Apple about this to see what they say. Whether they are forthcoming about this is another matter but something like this is clearly a defect in construction as far as I can see.
Well I took the MacBook in today so they could look at the marks, which from other discussions is agreed to be from glue holding the badge in place.
The guys took it to the back room to take a further look and have said they think it's 'probably' from compression is they say it lines up with the solid bar along the top of the trackpad, all of which I disagree with as the vertical smudges on the screen don't line up with anything. They are of course only going by their technical database and are refusing to replace it as part of the fit for purpose etc..
I feel rather sad by this as today I feel I have lost all faith in the 'quality' of the product, even the guy agreed that £1200 for a laptop, you expect it to last.
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Had my Mid 2012 27" iMac fixed last summer. I started noticing the smudges coming back a month ago, and noticed last night it is forming on the right side of the screen 1/4 of the way from the bottom all the way to the top of the monitor. I'll get it reaplace agian, but I'm not looking forward to lugging this beast through the mall again. FUBAR Apple.