It might be worth trying the very latest driver, 180.18. I had occasional problems with the 173 and 177 series of drivers, then 180.08 was pretty good but not perfect, then 180.11 and 180.16 were progressively worse than 180.08 for refresh corruption. But since I installed 180.18 on the 23rd Dec, I've had no refresh problems at all. I installed using the NVIDIA-Linux-x86_64-180.18-pkg2.run file that I got from nvidia's ftp site, ie at ftp://download.nvidia.com/XFree86/
It might be worth trying the very latest driver, 180.18. I had occasional problems with the 173 and 177 series of drivers, then 180.08 was pretty good but not perfect, then 180.11 and 180.16 were progressively worse than 180.08 for refresh corruption. But since I installed 180.18 on the 23rd Dec, I've had no refresh problems at all. I installed using the NVIDIA- Linux-x86_ 64-180. 18-pkg2. run file that I got from nvidia's ftp site, ie at ftp://download. nvidia. com/XFree86/