We've got a pair of Epson mid-level projectors that are about 3-4 years old. Anytime the display is black, a greenish tint can be seen toward the bottom of the screen. It can also be seen where no input is being sent to the projector and it's just displaying the black test screen. Lamp hours are around 1,300 and I think these are rated to at least 2,000. It's odd that both projectors are doing the same thing without it being some type of input issue. Pic is a good example. It's not a bounce from the uplighting either. It will display the green tint in a completely dark room with no input. Anyone seen this before?