Hello all. I was using my computer this morning, a custom tower, when my friend opened my door and the door hit it. The screen froze and I waited for it to unfreeze, but this did not happen. When I rebooted it, my monitor was failing to receive a signal. I have tried DVI-D and different HDMI cords galore, to no avail. I have reseated and resecured every cord within the computer. I do not think it is a monitor problem because the monitor works with other computers. Any help is appreciated, thanks.