Light purple transparent band

There is a light transparent band that starts at about a 1/2 inch wide on the left side and goes to 3 inches on the right side. I can still see the picture under the band but it has a dark purple haze .So the transparent band is a dark purple hue. I replaced the bulb. and did a system reset and it is still there. In looking through the forums there have been some simliar posts. The fixes range from replacing the bulb to replacing the light engine. I was wondering if someone has had the same problem and found a way to fix it... Thx,