Hi peeps! Long time since I've asked for help in a forum!
I have a non-Thunderbolt 27" Apple display, and it's exhibiting some strange behaviour. When a pattern of vertical stripes is being displayed, that are light for two pixels, then dark for two pixels, the pattern is faintly repeated across the width of the screen. If the stripes are more than two pixels wide, the problem vanishes. The more stripes that are shown, the more prominent the issue becomes.
Here's a photo of the weirdness (click for massive view)...
Here's a screenshot of Steam's updater progress thing, where I noticed the problem at first.
Perhaps if anyone else has a 27" Apple display they can see if they get the problem too? I've tried the display hooked up to my MacBook Pro and Mac Pro, with the same issue showing on both.
I have a non-Thunderbolt 27" Apple display, and it's exhibiting some strange behaviour. When a pattern of vertical stripes is being displayed, that are light for two pixels, then dark for two pixels, the pattern is faintly repeated across the width of the screen. If the stripes are more than two pixels wide, the problem vanishes. The more stripes that are shown, the more prominent the issue becomes.
Here's a photo of the weirdness (click for massive view)...
Here's a screenshot of Steam's updater progress thing, where I noticed the problem at first.

Perhaps if anyone else has a 27" Apple display they can see if they get the problem too? I've tried the display hooked up to my MacBook Pro and Mac Pro, with the same issue showing on both.