Hi everyone, today something strange happened and i was wondering if someone knows what the reason could be. I'm working on a nmp 6 core and when i draged some files to another folder, right on the sound you hear when the file drops in the folder the screen went completely black for a small second and then came back. It only happened once. Does this sound like some kind of software issue that happened or is this a sign of some hardware problem...computer is running fine and its actually the first time i ever had this. should i be worried?