Yes i had the same problem, i sent the screen to service center, they fixed it. (about 2 years ago)
Now it happened again, called to service center, my screen is not under 3 years warranty anymore. So the service guy told me.. thet this is an usual probleme with these monitors, and that he will send me instructions how to repait screen by myself. im not good at tech englishj.. so the problem is with some connection. it should be easy to mend.. but i cannot describe in english.. so try to call some service guy and maybe ask him for help..
Marcel
September 2008