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