This has happened once before and I accidently fixed it, but it has happened again. I recently unplugged my second monitor to plug it into my main tv which is large ( just for viewing purposes). As soon as I plugged back into its proper place, my 2nd monitor, it remained detected with no display. Need some advice not really sure how to fix this. Its not the adapter cause it works with other monitors, and I tried to uninstall the drivers and re-plug it in, but nothin. Don't know how I did it last time but help would be great.