If you are running your Benq through vga the best it is capable of is 800 x 600.If your source is better then that you are not taking advantage of its capability,Even if you run a better source to your pc... lets say a dvd player,it will only give you 800 x600.I believe your Benq is capable of 1024 x 768 and will display 1080i,720p and 480p.Correct me if I,m wrong it has been a while since we sold that model in my store.Infocus is another good projector there model 7205 will support 1024 x 768 and has 3/2 pulldown,it will support vga,rgb,hdmi,svhs,composite and component video. It also has variable fan speed to increase bulb life.