So i have my adapter connected to the mini pci-e of the laptop. I everything boots up just fine and i can do normal tasks. But whenever i open a game the graphics card still runs but the screen turns off. I can still hear the music from the game from  the laptop's speakers, but somehow the game crashes and i have to hard reset the laptop to get video signal again.    What might be causing this? I would appreciate any help and thanks in advance   My setup is: Dell latitud