I purchased a refurbished U2713HM monitor from dell outlet a few weeks ago. It was working fine with an HDMI connection, but I soon found out HDMI maxes out at 1920x1080. I swapped the DVI-D cable from my second monitor (Dell 2208WFP), which worked well on that monitor. When I set the resolution on the 27 to the max 2560x1440 resolution, the entire screen fills with snow. This occurs at any resolution above 1920x1080. I tried to take a screen shot to illustrate, but the screen shot appeared normally!
The video card is an nVidia 760GTX with 2GB of memory, less than a year old. It has a DVI-I interface.
I have the latest monitor and video drivers installed and have done the factory reset. Any ideas?