I bought a new computer screen of 2560x1440, however, using any resolution higher than 1920x1080 makes the screen very blue, vertical lines. As if every odd pixel on the x-axis is not displayed and every even pixel has a blue tint.
This is strange, my old screen was 1920x1200 and worked fine. I just updated my GPU driver (I have a GTX 260) but no success.
What could be the cause? Power shortage? GPU faulty? Driver issue? Windows 7...?