Hi. I've FSX Acceleration. A2A Spitfire MK IA propeller circle look weird on the runway, on cockpit view propeller shows OK. How to fix this

that is unusual - try to install it again and see that DirectX9 is added as well.

Hi. I've Windows 7 64bit with DirectX 11. I've installed plane few times, no help.

FSX has some problems with 64bit - not the least becuase FSX is 32 bit and Directx 9

maybe you need the complete DirectX9

https://www.microsoft.com/en-us/download/details.aspx?id=34429

Hi. I tested prop. with DirectX9, whole cockpit view is black, and a yellow prop. tip circle show, I installed DirectX11 back. Odd thing is, only this plane has weird prop. disk.

if you can move to P3Dv4 - it is 64 bit and runs at high FPS, the downside is that you need to buy some add ons again like the A2A Mustang and Spitfire.

Thanks your advises. Case is closed.