I have a new NEC PA271W that I connected to my 2009 Mac Pro with a GeForce 120 using a dvi cable supplied by NEC. However, if I set the resolution to 2560x1440, the quality of the text and fonts deteriorates completely. Things display ok if I drop the resolution to 1920 x 1080. Why is the highest resolution not working properly? Do I need a mini display port connection?
Thanks.