I've a made a video of HL2 running on my screen to show the problem with smearing/ghosting that a lot of people are talking about. I am on my 3rd unit, all November 2006 and all of them have this problem
http://video.google.ca/videoplay?docid=8625269141513449980
http://video.google.ca/videoplay?docid=8625269141513449980