I have an Acer computer and at the back there is a VGA (blue colored monitor cord) and what i believe is a DMI input (the white monitor cord) i want to be able to use extended desktop.
I have both the monitors plugged into the computer but i cant get it working. I have vista, i go into display settings click on the second monitor and tick the 'Extend the desktop onto this monitor' option but it does nothing.
I think the dmi input is to my nvida video card and the vga is to the built in video card. can they both be used simultaneously to give me extended desktop?