From past few days my samsung LNS4041 40" LCD screen is having some display problem. It has a multi-colored, diagonal speckle pattern on its screen. The pattern is constant but the pixels keep on twinkling on and off. Their are about 40% of pixels involved in it. When i turn on the LCD TV , the picture is clear for few seconds. But after 3-4 secs the pattern seems to appear on the screen. I don't have any idea what the problem is?? I think it is some where related to the hardware of the device. So any one please suggest me some useful tips to fix this problem permanently..