Graphics issues have caused Apple to delay shipments of the 27-inch iMac model until the cause of the problem can be determined.
Apple authorized resellers have reported delays in shipments of new 27-inch iMac models due to reports of display problems. Reports of flickering screens and yellow-tinged displays have become more common around the internet, so much so that a website has been created to catalog reports of issues from users.
According to the Apple iMac (Fall 2009) Issues blog, out of 678 respondents, nearly half have had problems with flickering displays. The author does note that the numbers are part of an “unscientific survey” and should not be considered representative of all iMacs sold.
The blog also reports that Apple resellers have been told of delays of 2 weeks in order to give Apple time to replace the graphics cards on the 27-inch iMacs. The iMac model in question comes in either dual-core or quad-core formats and contain the AMD ATI Radeon HD 4670 or 4850 model graphics cards.
AppleInsider noted in late November that users were reporting issues with the 27-inch model, with some receiving dead computers and others receiving models with cracked displays. Issues of stuttering when playing flash content were also common and were fixed for some by an update in early November.
