Watch out- this section is for a geekiness fix. Skip it if you don’t need to get out more often.
Geforce tweeks for specific games, I didn’t know these were available on my card but here’s the explanation pasted from a Ubi forum:
Right click on desktop and select Properties menu.
Click the Settings tab & click the Advanced button down the bottom.
Click the tab that lists your vid card (6800 in my case).
This is your Nvidia controls. Go to the section called Performance & Quality Settings. In the Application Profiles box, select il2fb.exe and Il2 Sturmovik Forgotten Battles from the Application and Active Profiles boxes respectively.
Now click the Modify Profile… button and select "Modify" from the two choices.
In the next box, select browse, and navigate to the Il-2 Sturmovik 1946 game folder and click on the il2fb exe icon and press Open.
(Back now in the Modify Profile window) Click OK.
Now you can tweak the Nvidia settings…
Make sure the View: Advanced Settings is selected. From the available selections, tick the boxes and set them up as per below:
X Antialiasing settings 2xQ/4x (whichever is best for you)
X Anisotropic filtering – OFF
X Image settings – Quality
Color profile (leave blank)
X Vertical sync – ON
X Force mipmaps – Trilinear
X Conformant texture clamp – ON
0 Extension limit – OFF
X Hardware Acceleration – Single display mode
X Trilinear optimisation – ON
X Anisotropic mip filter optimisation – ON
X Anisotropic sample optimisation – ON
0 Transparency antialiasing – OFF (don’t tick the box)
X Triple buffering – ON
X Negative LOD bias – CLAMP
Now click OK and the new settings should be saved and activate when you start ’46.
Finally, go to the setup tab in your ’46 folder.
Click on the Settings tab and select Custom.
Set Texture mipmap filter to Anisotropic.
Set Texture compression to None.
Select Use Vertex Arrays
Unselect Polygon Stipple
Tick: Mutitexture, Combine, Secondary color, Vertex Array Extension and Texture Compress ARB.
Leve the others un-ticked.
Select OK to close and save.
This is what I did and found my performance greatly improved over identical settings in 4.05m. If anyone has any improvments to this, it’d be great if they can share them .