Step 1: Visit http://www.nvidia.com/view.asp?IO=li..._ia32_1.0-4363
Step 2: Grab the README.
Step 3: Download the installer.
Step 4: Run the installer per the instructions in the README.
Step 5: Edit your XF86Config file per the instructions in the README.
Step 6: Create a modeline for 1920x1200 for your panel. I've successfully used
Modeline "1920x1200" 162 1920 2020 2052 2184
1200 1202 1208 1235 +Hsync +Vsync
but you should make sure that it's correct for your panel before you try it. An incorrect modeline can damage your panel. To try this one, put it in your XF86Config file next to the other modelines.
Step 7: Add "1920x1200" to your Modes list (make it the first one).
Step 8: 'startx'