just recently am getting this problem when on final approach and after landing. Any help will be appreciated. A reply to my post at AvSIM suggested it may be something to do with the couatl manager needing updating which I have done but still have the same problem.
Your problem doesn't have anything to do with Couatl or Addon Manager, I don't understand how someone would even *think* about this being related to them (you should never post on other forums about support questions, always aks to the source), what is clearly a video memory corruption problem, which is likely due to wrong video card settings, wrong FSX tweaks or a combination of the above.
- First try to reset your video driver settings to default. Be sure you don't use "Transparency Antialiasing" (or "Adaptive Anti-aliasing" ).
- If that doesn't work, try to update your video driver too.
- If that doesn't work, try to reset your %APPDATA%\Microsoft\FSX\FSX.CFG file, to have FSX rebuild a new one with default settings
- Be sure you apply the HIGHMEMFIX tweak to the FSX.CFG, you can enabled it with the Addon Manager too, that's the only setting that really needs to be applied.