Hi, I have a MacPro3.1 with the NVIDIA Quadro FX 5600 1536 MB grafikcard. I want to use the Dell U2515H monitor, which only has HDMI, mDP und DP connectors. Which cable or adapter can I use to get the full resolution of 2560x1440? I have already tried: Apple Mini DisplayPort to Dual-Link-DVI-Adapter Apple HDMI to DVI Adapter Amazon HDMI to DVI-D Adapter Cable With these I only get a resolution of 2048x1152. Does anyone have a idea?