I am trying to set up a home theater system and need assistance. I have a Epson Home Cinema 2150 Projector and I am trying to hook up a Samsung 5.1 CH Blu Ray Home Entertainment System HT-J5500W. I was told only an HDMI would be needed but I have tried two different cables and the projector still doesn't project the Home Entertainments home screen, or my laptop. The projector did mirror the laptop screen through wifi, but it has 2-3 second lag. Any help??