Every single WUXGA screens I have seen have had this problem. Seen 4 of them now. The screen I have now has the light problem however it is hard to see and the lights have to be off with a dark background.
If ya want to see if your screen has a prob go to monitorsdirect.com and run their Monitor Calibrator, or just run a dvd and go into a dark room if ya have it you will see the light.
Ok, read this forum first, a lot of good info.... When you first get it check it out to make sure its ok, then plug it in and turn it on. Look at the screen for any probs check the system specs to make sure you got what you paid for. ...