Can you ad a VGA monitor as primary monitor?

I am not able to ad VGA monitor as primary monitor for Aspire One. Is that not possible? It only seems to allow extended to notebook monitor which isn't very useful. Thanks.

 

Assuming Win XP. If Vista, stop reading and wait for others to chime in.

a) Hook external monitor to A1 VGA out port
b) Turn on A1
c) Once Windows loads, keep "Fn" pressed while hitting "F5" key. First time is internal monitor mode only, 2nd time is both monitors, 3rd time is external monitor only.
d) Release Fn key and there you go, a VGA as primary -and only monitor.

If want to use both monitors, then on step c) stop at 2nd click
e) Right click on Intel GMA for mobile (monitor like icon on taskbar, close to the time display)
f) If you want to see same screen on both monitors, select Dual Display Clone under multiple monitors. At near right there're a couple of drop downs, allowing to select which your primary or secondary monitor. Select according your needs
g) Left click on display settings. First tab is the one you selected as primary display. Select the resolution and color depth required and hit Apply (same settings cascade to secondary monitor due being on Display clone mode)
h) Left click on Scheme options tab. Key in a name for your setup and hit save, then OK

Hit Done once finished, and there you are.

This should work until VGA monitor is unplugged. Once you plug again, just right click on Intel GMA, then select display properties, go to scheme options, pick your scheme name (from h) above) and there you are again.

There's a final option, making the external monitor being an extended desktop. This is the setup I have both at work and on A1s, and can provide instructions if needed.