So I just picked up a second hand monitor to try and get a dual setup on my computer.... I seem to be getting nothing but a flashing light on the secondary monitor though. I have 2 VGA ports in the back of my computer and it seems that only the one is working. My apologies for the crappy cell phone pics....
the second picture is obviously the port i am using currently. when i plug a monitor into the other one though, it just goes black and the power light starts flashing.
I am running Vista on an Acer Aspire AM5641-E5651A.