I have no issues with plugging in 2 monitors but when i have my 4k tv plugged in my monitor screens flash like its changing resolution and goes black for 5-10 seconds every 5 min or so. I have unplugged my tv and it fixes it but when my tv's plugged in even if it's off it still does the flicker. Anyone have any idea why? My video card has been tested and is in full working order.