Using a G5 1.8 with nVidia Geforce fx 5200. I cannot use the dvi connection. My computer says, "out of range signal, chg to 1920 x 1200 60hz. The optimal resolution is not an available option. Can anyone tell me how to obtain the display option? OR suggest an alternate "optimal" resolution so I don't have the slight distortion. Don't know if the issue is with the graphics card or the dvi connection or what.