I've tried nVidia inspector settings set to vsync standard and adaptive at half refresh, and I have the two force vsync lines in my fsx.cfg, I've tried limiting the FPS to 30 in both the inspector and or in FSX, nothing will stop the screen tearing. I notice that most of the time the FPS is 29. something not 30 which is probably the cause of this, but that is odd when if I unlock the fps it is well above that.

 

Anyone know what's going on and how to fix this?

Are you flying with FSX in full screen mode?  or Windowed..

 

29 vs 30 is not the problem..

Fullscreen, same result in windowed too though, not that I'd want to run it that way.

have the two force vsync lines in my fsx.cfg,

I assume you are using the latest version of NI to set Vsync?  Do not use the lines in the FSX cfg, remove them. No longer required. Also make sure you have

[Main]

User Objects=Airplane, Helicopter

SimObjectPaths.0=SimObjects\Airplanes

SimObjectPaths.1=SimObjects\Rotorcraft

SimObjectPaths.2=SimObjects\GroundVehicles

SimObjectPaths.3=SimObjects\Boats

SimObjectPaths.4=SimObjects\Animals

SimObjectPaths.5=SimObjects\Misc

SimObjectPaths.6=SimObjects\UT2 Aircraft

SimObjectPaths.7=MyTraffic\Aircraft

ProcSpeed=19332

PerfBucket=7

FIBER_FRAME_TIME_FRACTION=0.15

HideMenuNormal=0

HideMenuFullscreen=1

HideInfoText=1

DisablePreload=1>>>>>>>>>>>>>>>>>>>>>this

Maximized=1

Still tearing, changed NI vsync to standard again, it worked, so no force vsync lines in cfg combined with Standard half refresh is the combination, thanks guys.