This article originally appeared in TidBITS on 2010-02-03 at 7:55 a.m.
The permanent URL for this article is: http://tidbits.com/article/10973
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27-inch iMac Display Firmware Update 1.0

by Doug McLean

If you own a 27-inch iMac that's afflicted by the cursed screen-flickering problem, Apple's 27-inch iMac Display Firmware Update 1.0 [1] will come as very good news. The update claims to correct the iMac's firmware to ensure proper display performance, eliminating the widespread flickering issue marring the displays of many 27-inch iMacs (see "New iMac Screens Cracking and Flickering [2]," 10 December 2009). Be sure to follow Apple's warning not to turn your computer off during installation. More information [3] regarding installation is also available on Apple's Web site. The update is available via Software Update or the Apple Support Downloads page. (Free, 294 KB)

[1]: http://support.apple.com/kb/DL998
[2]: http://db.tidbits.com/article/10829
[3]: http://support.apple.com/kb/TS3207