I just purchased a high definition av pack for my xbox and I connected it to the projector . The av pack has audio left and right, Y,PB,PR. When I turn it on the picture has to much green. The other tubes are working , when I shut off the green you can see they are working but not as bright as the green. when I switch back to t.v or dvd every thing is ok . The projector is a sony 1270 and ifb10 card. I would appreciate if someone could tell me what the problem is.