I have ASUS m3a78em board and a Viewsonic e2200hd monitor. The board has 3 outputs via HDMI/DVI/VGA and the montor has the same for input. I've plugged in all 3 cables, and currently I'm in VGA mode. I want to know how to switch from VGA mode to either DVI or HDMI ?? can anyone help? thanks in advance.