Computerworld:

Apple has delayed shipping new 27-in. iMacs until it can figure out the cause of flickering screens and other display problems, according to reports from authorized resellers.

The move came just days after a Web designer created a site that tallied issues with the 27-in. iMacs, including screens broken in shipment, on-again-off-again flickering displays and screens that showed a jaundice-yellow tint.

[…]

Earlier this week, Apple changed the shipping status on its online store for both 27-in. iMac models from “Ships: 5-7 days” or “Ships 7-10 days” to “Ships: 2 weeks.” Although high volume sales could account for the change, Pronych said he had been told by some users that Apple had pushed back the projected ship dates for their already-ordered iMacs.

I know we’ve seen several in our shop already with this issue. Hopefully, Apple can sort it out for future models and release a fix for existing machines.