occurs on my system as soon as moving. less if standing but still intermitant.
hope this info helps.
my system settings are:
Operating System: Windows 8.1 Pro, 64-bit
Memory 16GB Ram
DirectX version: 11.0
GPU processor: GeForce GTX 770
Driver version: 335.58
Direct3D API version: 11.1
Direct3D feature level: 11_0
CUDA Cores: 1536
Core clock: 1045 MHz
Memory data rate: 7010 MHz
Memory interface: 256-bit
Memory bandwidth: 224.32 GB/s
Total available graphics memory: 4096 MB
Dedicated video memory: 2048 MB GDDR5
System video memory: 0 MB
Shared system memory: 2048 MB
Video BIOS version: 80.04.B4.00.1A
IRQ: 16
Bus: PCI Express x16 Gen3
[Components]
NvUpdt.dll 10.4.0.4 NVIDIA Update
nvui.dll 8.17.13.3558 NVIDIA User Experience Driver Component
nvxdsync.exe 8.17.13.3558 NVIDIA User Experience Driver Component
nvxdplcy.dll 8.17.13.3558 NVIDIA User Experience Driver Component
nvxdbat.dll 8.17.13.3558 NVIDIA User Experience Driver Component
nvxdapix.dll 8.17.13.3558 NVIDIA User Experience Driver Component
NVCPL.DLL 8.17.13.3558 NVIDIA User Experience Driver Component
nvCplUIR.dll 7.6.750.0 NVIDIA Control Panel
nvCplUI.exe 7.6.750.0 NVIDIA Control Panel
nvWSSR.dll 6.14.13.3558 NVIDIA Workstation Server
nvWSS.dll 6.14.13.3558 NVIDIA Workstation Server
nvViTvSR.dll 6.14.13.3558 NVIDIA Video Server
nvViTvS.dll 6.14.13.3558 NVIDIA Video Server
nvDispSR.dll 6.14.13.3558 NVIDIA Display Server
NVMCTRAY.DLL 8.17.13.3558 NVIDIA Media Center Library
nvDispS.dll 6.14.13.3558 NVIDIA Display Server
PhysX 09.13.1220 NVIDIA PhysX
NVCUDA.DLL 8.17.13.3558 NVIDIA CUDA 6.0.1 driver
nvGameSR.dll 6.14.13.3558 NVIDIA 3D Settings Server
nvGameS.dll 6.14.13.3558 NVIDIA 3D Settings Server