Forcing manual shutdown.

Got this annoying bug whenever i quit SWTOR i get a black screen and i am unable to do anything, bring up task manager nope, bring anything up on screen nope. So im forced to manually shutdown which i think does damage to your computer im not sure ? 

But this did'nt happen before, i've been fiddling with the windowed/fullscreen settings a bit changing my fps to 60 on a 144hz monitor which has helped me to enjoy the game further, and i can still play normally with a tiny hick up bugs lying around...But it's really frustrating when i just want to pop out of game and look in my mail or quit to do something else.