I connected my machine to my Denon AV 4306 (DVI to HDMI) and the denon to my Epson projector (by HDMI). My Epson does 720 x 1280 pixels. When I take 720p in my AV-Wizzard, the screen is still to big and does not fit on the projector. Even when I run a regular ubuntu, it recognice 720p but the screen doesn't fit. Any Idea how I can change or adjust the screensize?