After about a minute of gameplay the screen will disconnect from the computer. Alt tab does nothing, I can still hear game audio and friends confirmed I'm still connected and can move and use abilities. Alt F4 closes game but screen still black. I have to hold power button and hard restart. I have an i7 4770k, GTX 980. I've tried fullscreen and windowed borderless, problem prevails. My other PC (i7 8700k, GTX 1080ti) doesn't have this issue. I used to play GW2 on the first PC mentioned before PoF and had no issues.