I am connecting a PLV-Z4(w/hdmi port)projector to a PC nvidia 7800 GTX card (w/DVI-I port). When I connected with a HDMI-A to DVI-D it only allowed 2 displays 800x600 and 1024x768(this one constantly flickered, both looked terrible). I think if I upgrade the caple to DVI-D Dual Link or even twin to HDMI-B that might help. Honestly I have no idea. I have a 25 to 30 foot distance to cover. Any one know bout this?