Hi Guys! My second monitor are not working. The primary monitor works fine and the second one is a Acer AL511 it just says No Input Signal and then Power Saving. I've plugged in the ac adapter and the VGA cable. I'm using Windows 8.1 and I went in to screen resolution and it dosent detect it. I tried downloading my graphics card drivers but didnt work. I rebooted my pc loads of times, replugging. Please help!