I posted about this with the initial release, but haven't seen anyone else mention it, so will post again since I still have the problem.
The anomoly flashes geometric patterns continuously while in cockpit.
Screenshots are using settings from "Test4" of frame rate thread, but artifact is also present in tests 1-3 settings on my rig:
Intel Pentium III, ~860MHz
512MB RAM
DirectX Version: DirectX 9.0b (4.09.0000.0902)
RADEON 8500 SERIES; Display Memory: 63.0 MB with Catalyst 3.7
Splash1