I just put together my first, entry level home theater set-up. I'm using the Infocus X1 projector. I am completely satisfied with all aspects of the projected image except for one thing. Surrounding the perimeter of the image is a dark grey shadow that measures about 8-10 inches wide. I am projecting from about 12ft. away which displays an 81" diagonal image in 16:9 format. The shadow is very noticeable when the room is completely dark, and less noticeable under more lighted conditions. Is there a way to eliminate the shadow? Or is this something I'll have to live with coming from a low-priced entry level projector such as the X1? Thanks!