How to use an external monitor with vista laptop?

Question

i have a vista laptop (acer) and am trying to hook it up to a projector via a VGA cable. Now, if the laptop is already on and i connect them, i can't get the projector to pick up the signal. however, if the cable is connected and i restart the laptop, the projector will pick up a signal when the laptop reboots.

How can i get the projector to pick up the signal when my computer is already on? (i'm pretty sure the solution lies in the laptop, and not any problem with the projector).

Answer 1

Fn+LCD/CRT button

Answer 2

go to start menu > accessories> windows mobility center > check the presentation settings.

Answer 3

try this

right click desktop

click personalize

in the tasks list click connect to projector or other external display

The Windows Mobility Center appears, in the presentation settings box click the turn on button to turn on projector

try that

hope i helped