I replaced my Dell Precision T1700 desktop with a Tower Plus EBT 2250. I ran the T1700 thru 2 Dell monitors but I now run the EBT through them - zero display issues. I need to keep the T1700 for some applications so I bought a single monitor & connected via VGA - monitor says no signal (T1700 doesn't have HDMI ports). So I get a different monitor & connect via display port - still no signal. I connect this latter monitor to the EBT - displays like a champ. I connect the T1700 to the 2 monitors - also displays like a champ. Why can't I get a signal from my T1700 to a new, single monitor?