I've just come back from the Bluewater Apple Store. Whilst there I looked at the Cinema Displays. They had all 3 sizes out. The 30" was lovely - really even brightness, great colours. Then I got to the 23". I was shocked, really gobsmacked. It looked appalling. I mean awful. There was a pink cast to all the colours. I couldn't believe it could be that bad, so I checked the colour profiles and they were correct. I even tried all the other profiles and none of them got rid of the pink. I really thought Apple would have sorted this problem by now.