Asus Eee PC 1004DN - Manual (Page 26)

Chapter 2: Getting Started 2-6
Adjusting the display resolution
Click the ASUS EeePC Tray Utility icon in the Notification area to adjust the
display resolution. Select the resolution based on your needs.
You need not scroll up and down the screen when you select LCD
Compress Mode.
When you select LCD 1024 x 768, move the pointer to scroll up and down
the screen.
Scroll down to see the bottom of the
screen. Scroll up to see the top of the screen.
The CRT-related options are unavailable when there is no connected
external monitors.
When the display mode of your Eee PC is CRT Only and the power
mode is Power Saving, DO NOT use a resolution higher than 1024
x 600 pixels. Doing so would make the connected external monitor
function abnormally.