I am using an XFX Force 6870 Radeon card to run 5 monitors. OS is Win7Pro. Everything had been set and working fine until I "borrowed" a cable for a test on another machine. When I put the cable back, oh, brother, have spent the last 30 minutes reorienting the monitors. One of them is a Hanns G and it is being weird. Regardless which resolution setting I use, it appears fuzzy. I remember having to dink with this monitor when I initially set up this machine, but cannot remember what I did to make the sharpness and clarity come back. Fonts are a little fuzzy looking.