Hi, I've tried 3 different monitors on my laptop, 2 of which worked in the past(1 is new) and none of them can connect. I just get a black screen and for a second it says no signal or check video cable. I have everything plugged in tightly, restarted my comp, have my graphics set to multiple displays, etc. My HDMI port works when I connect it to my TV, but I can't get anything to connect to the VGA port, could it be broken?