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
27" 2.8 Quad i7 1TB After 1-2 hours of use, screen flickered for few time, quick screen blackout occured, worked fine for few more hours and happened again.
27" 2.8 Quad i7 1TB Immediately after using my brand new iMac for about ten minutes I began noticing a white bar flashing horizontally at random. The problem progressed into the entire screen flashing black.
Jan Sampermans 27" 3.06 Core2Duo 1TB Screen distortion/flicker somewhere random in the screen (feels like it is more in the lower part) that looks like a horizontal bar of about 2-3inches just popping in and out of the screen.
27" 3.06 Core2Duo 1TB Screen has flickering and going black.
robotkiller 27" 3.33 Core2Duo 1TB I could work for hours on the computer and then suddenly it would flicker randomly with a band of horizontal static bars about 3 inches thick momentarily or, alternatively, it would black out for a fraction of a second (happened every 5-10 mins).
capricia 27" 3.06 Core2Duo 1TB Since this morning my display of my 27" iMac show the menubar in the middle of the display and above there are a lot of vertical lines in multi colors. Now I think this one is not a problem with the driver, I think there is a problem with the graphic chi
jmczaja 27" 3.06 Core2Duo 1TB After waking the iMac from sleep I began to see this flickering problem. The machine was not hot whatsoever so I dont think the issue is heat related.
artka 27" 3.06 Core2Duo 1TB I turned it on and the flickering and menu bar on the top portion of the screen is happening. It does this for roughly five minutes then it goes to normal?
pschaf 27" 3.06 Core2Duo 1TB Seems to be getting worse. Quick flicker of bar at the lower half of the screen. No real way to reproduce. Have tried restarting and also sleep.
pschaf 27" 3.06 Core2Duo 1TB Last night i watched a 30 min programme on BBC iPlayer and the 2-3 inch white lines kept popping up every few seconds horizontally across the screen. The screen also went black momenterally on 6 occasions.
billybuds 27" 3.06 Core2Duo 1TB momentary black screen and the flickering. Seems to be very sporadic, won't happen for a few hours and then seems to happen every 20 seconds or so. Also the computer sometimes won't wake from sleep
Gable31 27" 3.06 Core2Duo 1TB Screen has flickering and going black. Have called Apple tech support to begin replacement process. Makes me question the life span of the LED screen technology.
MarkyJ 27" 3.06 Core2Duo 1TB This morning it started to get worse and I also got he menu bar 2/3 down the screen, with the vertical 'barcode' look above it. The mouse moved off the bottom of the screen and re-entered on the top.
Jorel 27" 3.06 Core2Duo 1TB (flickers, blackouts, line , displaced screen, ...) and the slow wifi issue
ichbinglitched 27" 3.06 Core2Duo 1TB mine flickered on first boot (on the "select your language" screen) a few days ago and started spazzing out completely
mactoubib 27" 3.33 Core2Duo 1TB It is easily reproducible, by just activating the screen saver arabesque or activating TimeMachine.
QuickbookMDD 27" 3.06 Core2Duo 1TB this problem occurred nonstop upon first boot up. I had it plugged in a power strip with a 2 macbook pro's as well. I then put the 27" in a new power strip on its own with its own outlet with nothing else plugged into it and this problem hasn't reoccur
frodo20 27" 3.06 Core2Duo 1TB It happens mostly when I switch on after the display has been asleep for a while.
stevo77 27" 3.06 Core2Duo 1TB I then left it switched on over night and when I woke it from sleep this morning the screen started jumping up and down and displayed horizontal lines at the top and bottom.
McLaurin 27" 3.06 Core2Duo 1TB My screen (iMac 27") is fine UNTIL I go into a more graphics intense process. If I go into PhotoBooth, turn on some effects .. then BAM, there go the flickers. Flickers (plus screen going black intermittently) continue until restart, even if I quit
Goldfrog 27" 3.06 Core2Duo 1TB The first thing I noticed was a single white line going from the top to the bottom of the screen as I shut down... noticeable on the blue screen. And it went black a couple of times.
Peter Nuding 27" 3.06 Core2Duo 1TB Mine was fine for the first week now, but tonight it suddenly started doing this, and quite often so, i get about 3 to 5 of the pixel-garbage flickers per minute and the blackout every 5-10 minutes
rmp09 27" 3.06 Core2Duo 1TB I have the same flickering problem the moment I turned on the computer for the first time. The screen goes black for a microsecond at times as well. It has been intermittent.
Michael Hanscom 27" 3.33 Core2Duo 1TB occasional 'flickers' of static bars across the screen, sometimes the screen blacks out entirely for a half-second or so, and twice I've had the desktop 'shift/wrap' downwards, showing the menu bar about three inches below the top of the physical scr
AstonMartinDB7 27" 3.06 Core2Duo 1TB I get the same symptoms rebuilt the OS several times following a driver problem for my printer and thought the flickering had gone but it is back with the lines and black screens!
gustaven2000 27" 3.06 Core2Duo 1TB Sometimes the screen completely blacks out for 2-3 seconds on intervals of 5-6 secs and the machine becomes useless.
lordrobert 27" 3.06 Core2Duo 1TB after about 35min I got the first flickering. And it keeps returning irregularly.
jogness 21.5" 3.06 Core2Duo 1TB I have a new 21.5" iMac (ATI Radeon HD 4670) and am experiencing the exact same flickering issue
opeddler 27" 3.06 Core2Duo 1TB started about a week after i got mine
StileselitS 27" 3.06 Core2Duo 1TB I got my new 27' and problems started immediately - screen flickering.
kawo 27" 3.06 Core2Duo 1TB After replacing the ATI graphics drivers the flickering is definitely gone on my machine.
fredpontes 27" 3.06 Core2Duo 1TB I got my Imac 27 1 week ago and the problems started 2 days ago. I had the white lines and some blackouts.
bfreebody 27" 3.06 Core2Duo 1TB The 2-3 inches of static appear at random intervals on the screen, I've also experienced the screen going completely blank from time to time.
Brian Pratt 27" 3.06 Core2Duo 1TB I installed the 10.6.2 update last night and I'm seeing the horizontal bar flickering this morning. So the 10.6.2 update didn't fix everything, at least.
Soaringoak 27" 3.06 Core2Duo 1TB dentical issue here... 2-3" bands flicker horizontally across screen randomly... happening less often is the complete blacking out, but it happens.
dicktwi 27" 3.06 Core2Duo 1TB I restarted once and I haven't seen the problem again.
SirR-G 27" 3.06 Core2Duo 1TB The first time it occurred was after running in Windows for a bit--the computer had gotten quite hot so I thought it may be a thermal issue. I noticed it almost immediately after rebooting into OS X at the gray Apple logo screen.
Stephen Stark 27" 3.06 Core2Duo 1TB There was a similar issue with my MacBook Pro, but there were two settings for the display—when you switched to the low power mode (I think) it cured it. I don't think there are similar setting changes that can be made to the iMac.