The Rod Integrator issue was discovered recently and for some reason doesn't affect every released Lumis. When it does, it causes a shadowing, or image folding affect, in the corners of the image. It may occur in one corner, or multiple corners, it can be 6" long, or 4 feet long, it can bend toward the screen center, or along the sides, it can be very obvious, or not obious at all. It is only/mostly visible in bright scenes, and doesn't affect other aspects of the image. Replacement of the RI is required to fix the issue. All Lumis's arriving after Mid-May will have the new RI.