To further clarify the nature of this issue, in case I was not explicit enough above, there are two problems: (1) whether a cable or adapter which converts from Apple's mini-DisplayPort to the rest of the world's regular DisplayPort is capable of illuminating the display, and (2) if it is, at what pixel depth (8 bit or 10 bit) is the display operating. Problem (1) is a cabling issue which should never have have happened if the concerned companies had ensured from the get-go that certified, workable cables with one mini-DisplayPort terminal would be available either from them or supported by them from the day the equipment hit the market. They didn't do it, now they are being forced to do it because customers are howling at them, and NEC has informed me that they are making progress on the matter (but no substantive commitment from Apple Computer on any of this, despite the fact that they are the ones forcing mini-DisplayPort on us). As I said above, NEC has told me that the problem stems from whether power is being passed through the 20th pin. Cables and adapters need to leave the 20th pin open, otherwise the display will simply not operate or operate erratically. Manufacturers of cables and adapters need to respect this condition. (On the importance of the reliability of adapters, I have observed that even one you can buy from the Apple store for converting from mini-DisplayPort to DVI appears to be of questionable operational stability; and I am not alone in this observation. So the quality and reliability of adapters is a live issue.) Turning to problem (2) - the issue of pixel bit depth, which determines how many millions of colours the monitor can display, firstly, one needs DisplayPort connection technology to deliver 10 bit depth, and secondly, the computer's operating system must support it. The PA series displays from NEC are advertised to be fully capable of delivering 10-bit per pixel depth, but it is not being delivered because Snow Leopard does not support it. Both NEC and Apple Computer have confirmed this to me. There is nothing NEC can do about that because they are not responsible for the computer's operating system, and Apple Computer will not commit themselves to tell me what they intend to do about it, even though I just paid them a large sum of money for their flagship MacPro. So that's the status of this problem now: we have technological inadequacy related to how mini-DisplayPort can communicate with any other type of connection, and we have an operating system limitation frustrating customers' intentions to have the vastly more refined palette of colours which these NEC models are capable of delivering. This by the way does not affect the size of the available colour space - bit it does affect the finesse of the tonal gradations within it, and one of the reasons why we paid the big bucks to own it. It is of course outrageous that customers for these expensive systems should have to fish around the market place taking technical risks to solve operational problems caused by inadequate due diligence on the part of key players in the industry.