Hi Guys, Your advice on this one. My mac pro 2012, 2 x 2.4 GHz 6-Core Intel Xeon, NVIDIA GeForce GTX 680 2048 MB video card might be going bad. Your advice on this one. Is it the video card going bad. If it is what video card should i replace it with. Your advice is always welcome. I feel like this baby still has more juice i can squeeze out of it before replacing the macpro.