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Simple. just do a).

and before you go onto b). -- ask to inspect the machine in-store. if you are happy walk out. done deal.

If not, ask another iMac fresh out of the box.

Continue till you are happy.

I did that at my local Apple Store when I bought 2x30" ACD's. I went through about 8 brand new ACD's before walking out with 2 I found were acceptable. I'll admit that the Apple Store I dealt with, the sales guy and the store manager went the extra mile. And so they should b/c it meant I, the customer left the store happy. And they got to isolate the bad ACD's and return them to Apple to get fixed or sold on as refurbs to people who had lesser expectations than myself.

Long story short -- two stuck pixels, and a 27" screen that audibly whined when you brought the brightness down below 80%.

Also had problems with color uniformity (color temp) and a wired ethernet port that would sometimes not work after waking from sleep until rebooted. Plus the 27" i5 has *NO* ability to enable Jumbo frames.

Enough problems? I'd say so...

I asked the Genius after I was successful in returning my i5 iMac this past week whether they could do this for me -- let me open the box, plug it in, check it out for visual or noise problems BEFORE I took it home. He said they didn't have enough staff to devote to this. It might be possible for me to do this if I booked a "personal shopping" appointment but that's either before the store opens or after they close, and they still couldn't say whether the store would be quiet enough to hear the whiney-screen problem.

Sorry, but if you're gonna plunk down $2K or more on a new system hot on a heels of getting a defective one your first time, I say that they owe you a little bit of good will and effort...
 
Statistics

How do you know that the statistics are incorrect? Please tell us all!

If you say something buddy be prepared to back it up!

Are they incorrect in your knowledgeable opinion? Or do you have hard proof that the stats are wrong?

I must have counted over 40 people that have problems with their new imac27, I was just at the istudio shop and ran into 2 people at the counter with hey guess what "Problems with their screens".

So you would still buy a new 27inch imac, after reading about all the problems they are having?

If two planes from the same company crashed in the same month, would you still fly on that airline? Or would those stats be wrong too?

Apple could produce a complete dud of a machine and you would still rant and rave over it saying how good it is because it was made by apple.

Apple, do they make great computers? or are they great marketers?
 
Btom, I'm sorry, but the statistics are definitely incorrect. If there really was a 40% failure rate, this forum, about a dozen other websites, and the news would be bursting with stories.

Bryan

Bryan,

Well, our does...
Also, Apple is good in taking care of our kind of complains (thanks for it!).
Also, the kind of (in my opinion intermittent hardware) problems is a hell of a job to investigate and fix on a stiff deadline.
I know, I was there.

Btom
 
Or as a kind gesture to the Apple community, it would be helpful to spare other potential users/buyers of the same fate.

OK here's the thing. You want to publicise these failures to force Apple to fix their design and/or manufacturing, right? Then publicise them! Send emails and letters to tech writers and bloggers. Most importantly, don't accept any bad iMacs. Return every one and don't "give up" like you did with your 24" iMac.

Apple are a public company and are therefore sensitive to shareholder concerns. Further, they are in the business to make money, and product returns cost them dearly. A small percentage is acceptable, but at a certain point it is going to be worth actually fixing the underlying issue.

These are the ways to make Apple change. Not gossiping with those already affected, and posting meaningless polls.

Chances are that the failure ratio for the remaining 90% buyers (who are not here) is not that much off.

Sorry but this is simply wrong. I'm not trying to be mean. For the following reasons:
a) The percentage of owners who are on these forums a tiny fraction the total, not 10%. It might be 0.01% or something like that. That means the error on whatever poll we take is going to be huge when extrapolated to the whole population. Simply put, the sample size does not represent a high enough proportion to be valid. Now I could be wrong, but the point is we don't know and therefore cannot assume it.
b) On what basis do you make the claim that the failure rate of the rest of the proportion of people who own the iMacs in question is the same as those on this board? In fact there is very good reason to think the opposite, because anyone with access to another computer (or who's iMacs are functioning albeit faulty) is likely to look it up on google and find links to sites such as this, and thereby report it. As I said before, these pages are honeypots to people with problems. And if Apple can't help (on the spot) the natural thing to do is to complain to anyone who can listen, which means us on these forums. I'm not saying its wrong, I'm just saying its human nature to vent.
c) Not everyone who doesn't have a problem but who does read these forums has voted NO, just as not everyone with problems voted YES. We don't know the relative proportions of those two populations, but have no reason to think they would be same, and therefore is another source of error.
Thus it is very unlikely that the failure rate reported on these pages, even if they were honest and not subject to trolls, is in any way indicative of the failure rate of all iMacs.

As both myself and MacinDoc pointed out, if the real failure rate was even in the same ballpark as that shown on this poll
a) It would be huge news on Tech sites and would probably get a mention in some non-tech news
b) Stock would tank
c) Apple would lose a buckload of money
d) (Ironically) Apple would fix the problem faster!

The fact, that the problem was reported repeating itself on the replacement iMacs would confirm high failure ratio as well

No, statistically it cannot, but it is extremely disturbing. As I mentioned before, it looks like Apple have several problems here and need to lift their game. My issue is with people who believe that a poll such as this has any statistical meaning and therefore can be used as a basis for a purchase decision. Unfortunately, it can't.

Or do you have hard proof that the stats are wrong?

We can absolutely prove that the method of collecting the data is statistically invalid. It might be the case that, by coincidence, the data is actually correct. But the fact that the method of collection was invalid, means it cannot be used for statistical purposes.

So you would still buy a new 27inch imac, after reading about all the problems they are having?

That is precisely the question that we are trying to address. It is up to the individual to decide whether to buy. Assuming you need the machine, the question is whether you think it's worth the hassle to take it back. Solman quite rightly broke down that hassle in detail and I agree that it can be a real pain. That is a factor that we all need to make in the purchase decision, and I think Solman has certainly helped us in that regard.

If two planes from the same company crashed in the same month, would you still fly on that airline? Or would those stats be wrong too?

That depends on the reason for the crashes.

Apple could produce a complete dud of a machine and you would still rant and rave over it saying how good it is because it was made by apple.

We are trying to make meaning of the information at hand. There certainly are plenty of problems and Apple is going to incur significant cost in rectifying them under warranty. Obviously they will also investigate the reasons why they happen. Our hope is that they deem the cost to rectify the production issues is worth the investment, and that they don't deem this sort of failure rate to be acceptable.

Apple, do they make great computers? or are they great marketers?

Good question, but something that is beyond the scope of this poll to establish.
 
Padthai,

Statistics cannot be assumed to be correct; they need to be backed up by an established scientific method for how the data is obtained. Otherwise, I can say that 89.123456% of all people believe what they read and then sit back and force people to prove my statistic is wrong...

And, by the way, fobfob and Bryan did reasonably call into question the validity of the data as well as all the consequent claims based on the data by the OP. What fobfob and Bryan did was to call into question the lack of scientific method in obtaining the data. It is up to the OP to defend his methodology and to prove that it is scientifically valid.

Show this thread to any scientist, mathematician or statistician and he will tell you that the assertions based on the data from the poll are too over-reaching.

EVP

PS I think Internet polls have a 18.625% chance of having a scientifically valid methodolgy. ;)
 
fobfob,

Most of my speculations are based on "Statistics 101" and most of your objections are valid to some extent. Still, these are the only numbers we have and reported 100 PROBLEMS and 140 NO PROBLEMS are already statistically valid (depending on the confidence level you want to apply to it of course), main problem being intermittence of the blinking (one may argue, that some of the "NO" responders simply didn't see it yet).

On the other hand Apple wants to sell computers BEFORE Christmas to brag and I understand that too. I strongly believe they are also working on it as we speak. By now the problem seems to be real, unfortunately and also not totally unexpectedly (switching to the LED back light is a serious hardware change and it is easy to overlook this one thing...).

Btom

Again, thank you.

solman,

My pleasure,

Btom
 
Hey B boy, how do you know that the statistics are incorrect? Please tell us all!

If you say something buddy be prepared to back it up!

Are they incorrect in your knowledgeable opinion? Or do you have hard proof that the stats are wrong?

to be honest, if you look at your statements its kinda fallacious. What if he asked you to provide proof that the poll is true, the actual burden of providing proof is the one that made / believes the poll is true? :)
 
Simple statistical calculations can tell us that the 99% confidence interval for this many responses (249 at the moment) is about 8%. In other words, assuming that the sample population is unbiased, which is almost surely NOT the case here, we can only be sure that the percentage of people who really have screen issues is somewhere between about 33 and 49%.

Again, this assumes that the sample population is unbiased, which is not the case here since most of the people who responded to this poll are people from MR looking at a thread about iMacs with screen problems, not a uniform sample across all 27" iMac owners.
 
to be honest, if you look at your statements its kinda fallacious. What if he asked you to provide proof that the poll is true, the actual burden of providing proof is the one that made / believes the poll is true? :)

Exactly. The argument goes both ways.
 
There is certainly no need for unpleasantness in these forums. There is also no reason why MR members should avoid posting on this thread just because they happen to disagree with the assertions of the OP - this is a forum, after all, not a fan club.

The problem with this thread is that the OP is overgeneralizing the results of a small poll whose respondants are almost certainly selected in a biased fashion (as others have said, a large number who responded that they did have a problem may have arrived at this thread by doing a web search for iMac video problems). The lack of randomization in selecting respondants for this poll (recognizing that it would not be realistic to expect that the OP could have done this) completely destroys our ability to generalize the results beyond those who chose to respond. We can certainly state that 40% of responses (not necessarily respondants, because we cannot verify whether anyone may have under multiple usernames made multiple votes on either side) claimed (again, we cannot establish the veracity of the claims) that they had experienced a problem. One cannont claim, however, based on the design of this study, that these numbers are representative of the general population of 27" iMac purchasers, because in addition to the potential biases already mentioned, the selection bias in such polls severely skews the results. One could compare it to a site that conducted a poll asking whether readers had experienced a particular adverse effect to a particular medication. Almost 100% of people reading that thread (the adverse effect in question, of course, was the reason why they were reading the thread) would have responded that they had experienced that adverse effect while taking the medication, but if you did a randomized control trial, you would in most cases find that the incidence of that adverse effect was much lower.

Furthermore, from an economic standpoint, it makes no sense for Apple to cover up a problem just to promote holiday sales. These iMacs are, after all, covered under a minimum 1 year warranty, and continuing to produce them if they are defective at a 40% rate would simply not be economically viable, and unless Apple is completely fiscally irresponsible, a decision would have been made to put production on hold until the problem was resolved (in other words, the shipping dates would have slipped into December or beyond). Also, any computers that could not be fixed and were sent back for defects could not be put back into the mainstream shipping pipeline once they were fixed; they would have to be posted in the Refurb Store. Has anyone seen a 27" iMac there yet?

I am very sorry that some people have experienced problems with their new iMacs, and I hope that their problems are resolved quickly by Apple. I am pleased to say that mine works perfectly, as does every other one I have seen first-hand, and I hope that everyone else has a similar experience.
 
Furthermore, from an economic standpoint, it makes no sense for Apple to cover up a problem just to promote holiday sales. These iMacs are, after all, covered under a minimum 1 year warranty, and continuing to produce them if they are defective at a 40% rate would simply not be economically viable, and unless Apple is completely fiscally irresponsible, a decision would have been made to put production on hold until the problem was resolved (in other words, the shipping dates would have slipped into December or beyond).

I agree that the polls on Macforums are certainly not representative of the entire iMac buying population by any means, however, it would make plenty of sense from a financial perspective to ensure that Apple has its game face on when the holidays are at hand, and not be plagued with a manufacturing defect. Who knows if this issue is a running change in the assembly line or if its going to take a lot more effort and resources to fix, but I'd venture to say that Apple will do what it needs to do to protect its image during the holidays, whether that means fixing the problem or covering it up or both.

Also, any computers that could not be fixed and were sent back for defects could not be put back into the mainstream shipping pipeline once they were fixed; they would have to be posted in the Refurb Store. Has anyone seen a 27" iMac there yet?

They could easily be holding them for later distribution into the refurb'd website. If you owned the company and just released a product, why would you give the customer an opportunity to spend less? You really wouldn't. I'm sure that there have been plenty of machines returned for one reason or another, but Apple is doing what any other company would do.
 
it would make plenty of sense from a financial perspective to ensure that Apple has its game face on when the holidays are at hand, and not be plagued with a manufacturing defect. Who knows if this issue is a running change in the assembly line or if its going to take a lot more effort and resources to fix, but I'd venture to say that Apple will do what it needs to do to protect its image during the holidays, whether that means fixing the problem or covering it up or both.

True, but one thing the OP and some others on this thread seem to forget is that the iMac hasn't been out very long. It takes more than a month for a company to decipher the amount of computers shipped defective. Heck, the i7 just started shipping to customers a week ago. Even if Apple's own employees are seeing issues with the iMac, the company can't just up and say, "Hey, stop the production and let's put out a statement that we screwed up and our customers are receiving junky machines".
Also, for example, say if Apple sold 100,000 iMacs, if only 10,000 of them came back defective, that's not enough for the company to put out a statement and admit a defect. This type of situation takes several weeks to months to determine if it's a manufacturing defect, a design defect, a shipping defect or whatever, and the most that will happen is they will correct the issue on the assembly line and repair the ones the customers are complaining about.
 
Quote:
Originally Posted by cmvsm
it would make plenty of sense from a financial perspective to ensure that Apple has its game face on when the holidays are at hand, and not be plagued with a manufacturing defect. Who knows if this issue is a running change in the assembly line or if its going to take a lot more effort and resources to fix, but I'd venture to say that Apple will do what it needs to do to protect its image during the holidays, whether that means fixing the problem or covering it up or both.


One really has to wonder what the real truth is. But, at this stage, it appears to be the latter; covering it up. Especially in light of the good point made by Padthai:

"To admit manufacturing fault would both derail X-Mas sales and affect year-end Apple Stock Earnings Reports."

iMac problems start to be noticed. Apparently all it takes is one bad unit on a desk of a journalist.

http://www.engadget.com/2009/11/24/core-i7-imacs-showing-up-doa-including-ours/

Tom B

Finally, Macrumors has decided to also also highlight the iMac problem(s) :

https://www.macrumors.com/2009/11/24/27-core-i7-imacs-arriving-doa-or-with-cracked-screens/
 
The Imac Sequel

Oh my this new 27 inch iMac Thriller is turning into a Horror movie.

Should we change the POLL to maybe:

Does your iMac have?

Screen problems
HD noise Problems
DOA problems
_____ problems (coming soon)
 
Oh my this new 27 inch iMac Thriller is turning into a Horror movie.

Should we change the POLL to maybe:

Does your iMac have?

Screen problems
HD noise Problems
DOA problems
_____ problems (coming soon)

solman,

Welcome back. If you really want to help the Apple community, you may want to consider taking an approach like tapplox has done in this thread here. taaplox's thread is an outstanding example of how to track and approach a problem such as the yellow tinge that some people are experiencing. He/she is focused on a specific issue and is doing an excellent job of not getting emotional or biased in their approach. This tends to produce constructive input that may very well help forum readers, or potentially Apple, better understand the problem at hand.

You sir, I'm having a much harder time understanding. It seems like you're you're quick to bash any and every problem that you can dig up on the internet, yet you have never even owned one of the new iMacs. A quick research of your posting history also shows that you did a very similar thing a couple of years ago: you came here and bashed the heck out of the iMac and then left. And now you're back again with the same approach. In many circles, this would be considered trolling, but perhaps you're not.

I guess my ultimate question to you is this: what is your goal here? Is it to help sort out an issue that is affecting some users, and perhaps better things for the Apple community? Or do you have something else in mind?

I'm very interested to know.

Thanks,
Bryan
 
My 27" i7 is flawless, so far. It was on for 15 plus hours yesterday playing videos, music, transferring files and loading software. It went to sleep around 1:00 am. It woke up this morning feeling fine:) I tried to vote but could not find the vote button on the website.
 
Damn, I just had a full screen blink. !@#%#, I do not want to take this thing back after waiting weeks to get it and then spending a week setting it up!

Has there been any progress at all in finding an actual cause for this? If it's hardware, I guess I'm screwed and I need to return it, but I'm desperately hoping not to. Guess it's time to plug in that Time Capsule and back up the machine, but jeez.
 
Has there been any progress at all in finding an actual cause for this? If it's hardware, I guess I'm screwed and I need to return it, but I'm desperately hoping not to. Guess it's time to plug in that Time Capsule and back up the machine, but jeez.

No cure, no even acknowledgment, but apparently they replace the unit, no problem.

You may also want to update the POLL (and slip a note to Bryan, he thinks we are all just crybabys).

All the best with your next one.
 
You may also want to update the POLL (and slip a note to Bryan, he thinks we are all just crybabys).

Hi Tom,

I think you are misunderstanding me. I'm not upset at all that people are talking about problems with their iMac. I also think it's great that folks are trying to pull information together to help decipher what's going on. (like in the thread I linked to a few posts above) But it does bother me when someone is, or at least appears to be, blasting the heck out of something with blanket-type comments. Take a look at the OP's recent comments:

Oh my this new 27 inch iMac Thriller is turning into a Horror movie.

Should we change the POLL to maybe:

Does your iMac have?

Screen problems
HD noise Problems
DOA problems
_____ problems (coming soon)

Does this seem like he is trying to get to the bottom of the problem? Does it seem like he is contributing to the forum? In my eyes, he is simply taking an opportunity to continually bash Apple, just like he did two years ago. Now don't get me wrong: it's totally ok to not like a product and voice your opinion. But when all you can do is continually bash something and do so with outrageous claims (such as over 50% of all iMacs are effected), then yes, it begins to look like trolling.

Bryan
 
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