I have a Nvidia Geforce GTX 960. It has 1 DVI port with is being used by a older monitor when is the only way I can plug that one in. It also has 2 HDMI ports which will be used by my newer monitor. My newer monitor has all ports but I only have a spare HDMI cable for now. When i plug it into the HDMI port on the GPU I get a black screen with a box floating around saying "No DVI-D 1 cable". please help me fix this issue. Thank you