I'm running the latest X server and xfce4 using the v185.18.36 nvidia driver on a notebook PC that uses the Quadro FX 2700M. I can't select 1680x1050 (it's not in the list) from the nvidia-settings. It drops from 1920x1200 to 1400x1050! If I boot the PC into Windows XP I can select 1680x1050 no problem. Here is what xrandr says:
Screen 0: minimum 320 x 240, current 1920 x 1200, maximum 1920 x 1200
default connected 1920x1200+0+0 0mm x 0mm
800x600 55.0 56.0
640x480 59.0 60.0
Any ideas how I can run in 1680x1050?