Getting back to the subject that Boghb raised, companies should not be allowed to get away with this - especially if they did not offer to help you diagnose whether the problem is with their product or something in your computer system causing the trouble. Any company selling high-end merchandise of this kind has a corporate responsibility to help customers be sure both parties understand where the problem is, then the appropriate side can take the necessary corrective action.
The fact that they seemed not to have done this with you, but simply washed their hands of you and the problem, if it were me, a very stiff letter would be addressed to the President of Eizo in Japan (in case the problem is misbehaviour of their Swiss agent or branch office) telling him bluntly that in the case of that particular unit or model, they were manufacturing rubbish, misrepresenting it in their advertising, and unless they refund you your 3500 or apply it fully to a new product that doesn't suffer these defects you will do everything in your power to make it impossible for them to sell another monitor anywhere in the world. This kind of letter under these circumstances, while harsh, usually gets quick results.
The internet is a powerful instrument these days for keeping delinquent performers on their toes, and as consumers we need to be prepared to use it to the fullest extent necessary and permissible for these purposes, so that we don't get taken to the cleaners in the manner you have described.
I am now using a Lacie 321, and I am satisfied with it. I know about the high-end Eizo monitors, but from what you say it appears this is a company I should avoid consiering in the future, as after-sales support is really important.