Hey, not sure this is the right place to ask, but in the last few weeks, i've had a problem with my monitor. Every once in a while, at random moments, mostly when i play games, my monitor shuts down, displaying "DVI no signal". I tried switching the DVI cable with a VGA cable, but the problem is the same, only now when it shuts down it displays "VGA no signal". Is it a problem with the graphics card, or is it the monitor?