Viewing data for Flickering display

Total: 756

3.06C2D: 265
3.33C2D: 22
2.66i5: 156
2.8i7: 313


Screen Size
21.5": 18
27": 738


Hard Drive Size
500GB": 12
1TB": 666
2TB": 78

Batch (Week Built)

09-39: 6
09-40: 3
09-41: 5
09-42: 15
09-43: 40
09-44: 22
09-45: 63
09-46: 99
09-47: 109
09-48: 82
09-49: 57
09-50: 106
09-51: 37
09-52: 31
09-53: 25
10-01: 25
10-02: 6
10-03: 3
10-04: 3
10-06: 1
10-08: 2
10-13: 1
10-14: 2
10-16: 2
10-17: 1
10-18: 1
10-19: 2
10-23: 1
10-25: 1
10-28: 3
10-33: 1
10-42: 1

Fedex: 257
UPS: 168
DHL: 99
TNT: 2
Store: 230

Australia: 36
Austria: 7
Belgium: 15
Brazil: 2
Bulgaria: 1
Canada: 46
Denmark: 10
Finland: 9
France: 28
Germany: 64
Greece: 1
Hong Kong: 3
Ireland: 4
Italy: 33
Japan: 2
Korea: 2
Luxembourg: 1
Mexico: 5
Netherlands: 25
New Zealand: 2
Norway: 15
Poland: 2
Portugal: 3
Singapore: 5
Spain: 22
Swedan: 12
Switzerland: 11
Taiwan: 4
Thailand: 1
UK: 77
USA: 308

Source Specs Comments
richiekeys123 27" 2.8 Quad i7 1TB It did the screen flicker with bands at he top/bottom about 10-15 times when I first switched it on out of the box. And it blacked out for a split second twice. I assumed it was just adjusting itself initially somehow.
homsar 27" 2.8 Quad i7 1TB W8945 i7 here; had quite a bit of flickering on Sunday
MattEden 27" 3.06 Core2Duo 1TB I use the iMac at work and it blinks generally 5 or 6 times a day. It's a kind of monitor refresh with a black line in center of the screen. It lasts for 1 second or less.
Bricu 27" 2.8 Quad i7 1TB Over the past week, I have noticed the screen flickering issues. I have contacted apple and I am still attempting to determine if there is a pattern. For the record,this mac (4 gigs of ram, 1Tb of storage) is from batch: W8945.
cyclelogicpress 27" 2.8 Quad i7 1TB W8946 i7 received Friday November 20. Flickering and occasional momentary blackouts.
mtwhitley 27" 2.8 Quad i7 1TB 27" i7 W8947 Has the same flickering and tearing.
mightyannoyed 27" 2.8 Quad i7 1TB Just got my iMac less than 6 hours ago, and i've seen a grey screen flash & horizontal installing all the disks to see if this still happens.
MSVMark1972 27" 3.06 Core2Duo 1TB Just got my 2nd iMac 4 hours ago. Production Date Week 46. Result: 3 dead pixels and instant flickering right after first boot.
JohnPT 27" 3.06 Core2Duo 1TB I have an W8945 serial
Dreadrik 27" 2.8 Quad i7 1TB I received my 27" core i7 today, and didn't have any problems until it had been on for about 8 hours. The screen went mad with blackouts, flickering and the menu bar jumping to the top 1/4th of the screen.
frotdob 27" 3.06 Core2Duo 1TB I am currently on my third iMac 27". The screen flickered once, and the general hue of the screen changed. After a few hours of use, the screen started flickering on and off a couple times every minute. Then the horizontal distortions started.
Glitchos 27" 3.06 Core2Duo 1TB I have the 27" iMac and have seen the flickering problem BUT its only when i use wireless. When using wired i am as of yet to see the problem.
pors 27" 2.66 Quad i5 1TB Flickering, black screen and display offset started four days after delivery and happened radomly once every day.
mbohacz 27" 2.8 Quad i7 1TB I started getting intermittent black screen - like it went to sleep, but could not wake it up - then it would come back to normal and flick back to black every now and then.
camereo 27" 2.8 Quad i7 1TB The flickering started when i was downloading garage band loops. After restarting it disappeared and was gone for the day or so. then it appeared at some point again. Just the commonly reported flicker with blackouts.
robgb 27" 2.66 Quad i5 1TB Flickering and blackouts started about three hours in. I zapped PRAM and it went away for a couple days. Then it was back. Then it was gone. Then it was back again. This, over the course of a few days.
JiminSF 27" 2.8 Quad i7 1TB So far I've had one flicker/corruption followed by a blackout/blink and one blackout/blink in isolation, and have used the Mac for many hours a day for the 7 days I've been using it.
J.D. 27" 3.06 Core2Duo 1TB W8947 C2d Flickered a couple of times the first night-11/24 No problems-11/25 Went ballistic with flickering and blackouts-11/26
erickhxc 27" 2.8 Quad i7 1TB just got my imac i7 and after 3 hours started flickering and blacking out gonna ask for a refund, then buy it next year when this problem has solve.
Jason Warnke 27" 2.8 Quad i7 1TB Just got my i7 yesterday (W8947) - it worked like a charm all day yesterday...started using it today and I experienced my first flicker and black out. I restarted and has not recurred yet.
Wilderness Dreams 27" 2.8 Quad i7 1TB For those people still attempting to spot any pattern: 1. The machine has been on for less than 15 hours in total. 2. The longest single period it has been on for is approx. 2.5 hours 3. I have done nothing more strenuous than having iPhoto and firefox
Ricogasket 27" 2.8 Quad i7 1TB It worked well for 2 days. 3th day, the flickering began as did the blackout of the screen for a second. Make : W8947
wty 27" 2.8 Quad i7 1TB After using for half of the day, i am already experiencing the screen flickering problems a 3" bar going horizontal across the whole screen appearing every once of a while. sometimes in the middle of the screen, sometimes towards the bottom of the screen
cards42 27" 3.06 Core2Duo 1TB I have noticed that it flickers a lot less when the brightness is at its max.
KozureOokami 27" 2.8 Quad i7 1TB intermittent flickering two days ago and yesterday (days 4 and 5 since I got the machine)
Egrava 27" 2.8 Quad i7 1TB I experienced absolute no issues until today. I powered the machine up this morning to so some simple reading. While reading the Washington Post (nothing taxing for the video or system) the screen flickered three times.
loofah 27" 3.06 Core2Duo 1TB yup, today i turned my imac on, and the screen is now flickering every other minute, and I've had it go black for a brief second about 3 times in the last 20 minutes.
starocker 27" 2.8 Quad i7 1TB Mine is W8948, now flickering
Vernon_Fernando 27" 3.06 Core2Duo 1TB I live in the UK and I am outside of my 14 day return policy by 4 days with my iMac 27". My iMac is flickering a lot and has now started to black out.
jamiebicknell 27" 3.06 Core2Duo 1TB I bought my iMac on the 13th November. Didn't start to use it until the 24th November and started having problems with the flickering screen on the 26th November.
icats2 27" 3.06 Core2Duo 1TB Occasionally flutter just like the videos on Apple came out last week and replaced the LCD display and the interconnect cable.
Leisas4 27" 2.66 Quad i5 1TB blackouts
Dhalgren 27" 2.8 Quad i7 2TB My screen not only flickers intermittently, and goes black briefly (as if it's shutting off and coming back on), it sometimes splits horizontally, with the lower dock and the lower border shifted up to the middle of the display and the top of the display
rpeders3 27" 2.66 Quad i5 1TB I have the i5 27 iMac and after 14 days of pretty much continual use (i.e. 15 hour days) started to have a flicker issue (white horizontal bar). The bar was worse when I moved a Safari window or opened one. It had all the trademarks of a software issue. I... Read More
27" 2.8 Quad i7 1TB until power supply fixed
Dicebier 27" 2.66 Quad i5 1TB 12 days in and aside from the dead pixel...FLICKER AND BLACKSCREEN STARTED UP!!!!
zipper333 27" 2.66 Quad i5 1TB I was working on a Numbers formula and "Freeze,Flickering Little Rectangles all over screen" unable to close anything or Quit or anything. I had to hold the Power button for about 10 seconds to get it to shut down. Long time to restart.
mdevereux 27" 2.66 Quad i5 1TB Have watched a few movies and the flicker and black out is annoying. Random 1 second black outs and flicker is a problem thats starting to annoy me. Did not seem to notice it happening much at first but I think its getting worse.
Misterzeee 27" 2.8 Quad i7 1TB Mine's been okay and then it started flickering randomly after about a week. Seems to do it about 15 minutes after startup while the Mac is still quite cool. Flickering stops for the rest of the day after a reboot. 27" 3.06 Core2Duo 1TB I've had two bouts of flickering where the screen will flash off for an instant or sometimes a white band will flash on the screen.
dwarnecke11 27" 2.66 Quad i5 1TB By the way, my Week 45 i5 just flickered for the fourth time this week. Getting a refund tomorrow. The entire screen flickered/garbled for a split second. I took my Week 45 i5 back and I'm waiting this out for now. I think I'll wipe my G4 Mac mini and... Read More
Simon Catton 27" 2.8 Quad i7 1TB Started when viewing Youtube on Firefox 3.5.5. Hard shutdown as would not restart.
Sandrix27 27" 2.66 Quad i5 1TB last week I received the new iMac 27 (Intel Core i5) and the screen gives errors and problems, the image jumps, does a flash goes black... from the start.