I'm sorry I dont know what the video cable looks like, but I checked all my connections. My computer only has one spot for monitor hook-up too. In fact, I know it's not my monitor cause I'm using it as we speak...just on a different computer.
My computer would shut off for no reason. So it shut off on me, and I waited til the next day and tried to turn it back on...and that's when I got the error.