Grand theft auto PC

Okay I've tried a lot of things to fix this issue, if it can be fixed at all, and none of them worked. The issue is in both GTA 4 and GTA 5, where there is a strange graphical flicker whenever I move the camera. Here is some footage of it in GTA 5 and for some reason when camera is facing...

Hello Tom's Hardware, So, my friend decided to give me his old Nvidia GT 430 to put in my new duct tape steam box. Here is the computer. http://www.ebay.com/itm/Dell-Optiplex-760-Mid-Intel-E8400-Core-2-Duo-3-0Ghz-4GB-DVD-RW-Desktop-PC/231897799574 And here is the GPU...