Hi chaps ,I've just delved in to the world of a projector and im very impressed. It's second hand, sanyo z2 720 p. My setup was laptop to Sony homecinema then Sony to tv using hdmi, all was fine 5.1 etc . Now I've replaced tv with projector,I get a picture ok but no sound through my Sony system. The sound only comes out of the laptop speaker. I'm using a dvi to hdmi on the projector. Before I could see the Sony as default on my laptop ,but when I connect the projector I can only see the laptop speaker. Any ideas, would it be something to do with hdcp?