So I recently got a 2012 MacPro and got a GTX680 for it. Trying to see if the issues I am having are normal. I have both a 30" ACD and 23" ACD hooked up to it. In FCP7, I get pretty substantial tearing in my viewer window. Doesn't matter which monitor I drag it to, it's still there. Also, when I do full screen video in youtube, vimeo, etc...my framerate gets really choppy, like 5-10fps choppy. I have both monitors connected to the DVI ports, should I get adapters and use the DP and HDMI connections? Any advice you be great. The video tearing is annoying. My other system is a 2006MP with an ATI4870 and I never had these issues, kinda sad.