HI - So i'm doing some work in a dental office where we replaced some old computers with new ones. At each station the have 2 monitors, one on the countertop, and one thats mounted above the patient so they can see Xrays etc. I purchased Lenovo SFF S510 computers, that have both VGA and displayport ports. The problem I'm having is that the cable connecting the monitor on the countertop appears the be a standard VGA cable, and works fine when connected to the VGA port. The other cable coming from the mounted monitor APPEARS to be a VGA cable, and when plugged into the VGA port on the computer, doesnt display a signal from the computer as if nothing is connected to it. When I look at the pins on this "VGA type" cable, there is 1 pin missing. On a standard VGA cable there are 15 pins, and on this cable there are 14 (as shown in IMG1 attached) - The other interesting this is about a foot from this "VGA type" connector (on both sides) is a larger type connector that I can disconnect from the rest of the cable (shown in IMG5, IMG4 and IMG2) - I'm not sure what type of cables these are, and I cant get the displays to both work. Thinking these connector were standard VGA cables, I've tried displayport adapters, and I just cant seem to get it to work. Does anyone know what this is? Any help would be appreciated!