I have tried to connect my Geforce 7900 GTO graphic card to Sharp Z3000 projector via DVI-HDMI cable but I have no response from the projector. I am using nview and software recognize it (Sharp) on dualview but when you switch on single view to view Windows on projector, I do get no reponse at all. VGA to VGA connection works fine but obviously I would like to use pure digital connection to maximize its quality. Is there anyone who has any idea sorting out this problem? Thanks.