Appena uscito per i 27"
Dovrebbe risolvere i problemi di sfarfallio con un aggiornamento del firmware della scheda grafica ATI. Richiede SL 10.6.2
(correggetemi se sbaglio!)
Da MacRumors:
Apple today released 27-inch iMac Graphics Firmware Update 1.0, addressing recent complaints of screen flickering on the company's newest iMac models.
About 27-inch iMac Graphics Firmware Update 1.0
Updates the graphics firmware on ATI Radeon HD 4670 and 4850 graphics cards to address issues that may cause image corruption or display flickering.
Installation instructions for the firmware update, which weighs in at 683 KB and requires Mac OS X 10.6.2, are available in the associated support document for the release.