An update, The problem was the color wheel. Apparently this is common in the 8700. THe sad part of the story is the POOR customer service by Benq. They did not support their dealer at all. I have gone through 5 projectors and two months before I finally have one that works. The first...
I have a PE8720 that I purchased and installed 30 days ago. Last week the display began to show black vertical lines approximately 1/2" thick and spaced every 4" (my screen is 106"). I have disconnected the video source, unplug the projector for 24 hours then powered the unit up. When the...