I've been happily using 2 monitors for a couple years. The Other day both screens went dark grey at random and I couldn't escape that so I restated. when it booted back up only my primary monitor was in use, Anyway it turns out that if I turn off my primary monitor and restart the pc , my second one will work fine (as the new primary monitor). I cannot see the second monitor in settings regardless of which one I'm using and I've tried turning off at mains and checking the DP and VGA connections respectively. I just cant seem to get both to work simultaneously, any suggestions would be appreciated.