Well, I've just had the best 2 hours of offline flight simming I can remember...

[slm]

Originally Posted by SEE

I can tell you where to look but cannot remember the exact text for DX9. But at least you can check that it does not read the same as the line highlighted below (which is for DX10).

Open the file named 'conf' using notepad, you will find it in:

MyDocuments- 1CSoftClub - IL-2 sturmovik cliffs of dover.

Render=D3D10_0

I checked this conf.ini and it's using DX9.
Render=D3D9

Interestingly many of these settings files are also in C:\Program Files\Steam\SteamApps\common\il-2 sturmovik cliffs of dover
but there some values are missing. For example all values starting from Render are missing from conf.ini in this Program Files\... folder.

[window]
DepthBits =24
StencilBits=8
DrawIfNotFocused=0
SaveAspect=0
Render=D3D9
width=1600
height=900
ColourBits=32
FullScreen=1
ChangeScreenRes=1
Frequency=60
posLeft=0
posTop=0