I recently switched my Windows XP setup on my Dell Latitude D820 to Ubuntu 12.04 LTS (32 bit).

When I try to connect it to an external monitor Dell REV A03 over VGA, nothing happens.

When I boot Ubuntu from my boot-able flash drive and click "Try Ubuntu" it sees the monitor perfect, but when I boot to Ubuntu, it cannot see anything.

fn-f8 does nothing.

Any help is greatly appreciated.