the resolution is grayed out, because its beyond the limits of your monitor to display it.
a 1600x900 monitor can't display 1920x1440
i'm on the monitor now my display is 1920x1440
if 1920x 1200 i could live with that..
it small icons
win 7 use 1600x900 ok
i updated drivers
duel boot with debian lenny adm 64-bit
tryed a monitor that works on debian lenny 32-bit
same thing so the think somthing in hardware
i'll try a crt monitor