So, it looks like it will be another 3 weeks for Apple to issue another fix for the flickering screen problem, according to AI:
http://www.appleinsider.com/article...fix_for_flickering_27_inch_imacs_reports.html
"Soon after Apple delayed shipments of its big screen 27-inch iMac, various users have begun to report from AppleCare technicians that a second fix for screen flickering affecting the hardware is due within 3 weeks.
In a thread on the Apple Discussions forums that spans nearly 250 pages, users have begun to report conversations with AppleCare representatives who claim a new update is forthcoming. A month ago, Apple released a software fix for the flickering issue on the 27-inch iMac, but since then users have said it did not address the problem."
http://www.appleinsider.com/article...fix_for_flickering_27_inch_imacs_reports.html
"Soon after Apple delayed shipments of its big screen 27-inch iMac, various users have begun to report from AppleCare technicians that a second fix for screen flickering affecting the hardware is due within 3 weeks.
In a thread on the Apple Discussions forums that spans nearly 250 pages, users have begun to report conversations with AppleCare representatives who claim a new update is forthcoming. A month ago, Apple released a software fix for the flickering issue on the 27-inch iMac, but since then users have said it did not address the problem."