Apple's taken another shot at the iMac flicker problem.

It seems that last December's 27-inch iMac Graphics Firmware Update 1.0 didn't do the business for all owners, so the company has now pushed out 27-inch iMac Display Firmware Update 1.0.

Apple's discussion board contains several user reports that the latest update does indeed fix the flicker.

Both updates are available via Software Update or Support Downloads.

I'd imagine Apple will be glad to close the book on this issue.

If your iMac is still flickering after applying both updates, Apple would like you to contact AppleCare.

Now, about the yellow-tinged screen that some 21.5-inch and 27-inch iMac owners are complaining about...