Hi, I have a GeForce gtx 760 and my psu is a 700w I was reading the psu and it says 50a -12, 600w. My monitor is 10 years old, but it is a HD monitor. Whenever I play a game the screen gets these black lines all over the screen like it's tearing. Even when I exit the game the desktop still is shaky with black horizontal lines. Please help I just built my pc, and finally got the gpu in 🙁 to add to it. The parts where there are words in the game like chat boxes it gets really fuzzy, and when I got back to my desktop the icons start flickering. It's not bad to where I don't want to play games but it just looks horrible