HP Pavilion N3110 Using Instructions page 10

6. Make sure that the Settings box "Extend my Windows desktop onto this monitor" is checked.
Here are some other limitations to be aware of as you choose your monitor settings:
The sum of the video memory used by both monitors must be less than the total video
memory size. Your HP Pavilion Notebook PC comes with 2 MB memory installed.
Monitor 1 has to be in the same resolution as the panel size. For example, if the panel is
800 600, the resolution selected for the Monitor1 must be exactly 800 600 in order to enable
dual display mode.
Monitor 1 can be set to 256 colors or High Color (16 Bit), not True Color (24 bit), since
Virtual Refresh can be supported only in 256 color and High Color (16 Bit) modes. Monitor 2
can be set to 256 colors or High Color (16 Bit) only.
Monitor 1 and Monitor 2 cannot both be in 256 color mode.
Settings cannot be changed on Monitor 2 if DirectDraw is enabled—for example, if video is
playing—since the display driver cannot reallocate the display memory for dual display
support.
Under dual display mode, only the software cursor can be used. There is no hardware cursor
available under Virtual Refresh mode.
Dual display mode is not available if you are currently in a special mode from the LynxE
video control panel settings, such as Rotation or Stretch.
Games that use the DirectDraw API cannot run in dual display mode. You will be prompted
to disable Monitor 2 before running the game.
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