What is Aero and where do I find it?

[Les]

Aero is a Windows 7 graphical feature that gives your 'windows' things like semi-transparent edges and other cosmetic possibilities. It can take up some computer resources so people have been turning it off when running 'Cliff of Dover'.

You can turn it off altogether in Windows options, or you can make CloDo switch it off only when running the game.

You make CloDo do it by right-clicking on your Cliffs of Dover 'Launcher' Application (.exe) file and selecting, in the 'Compatibility' section of the 'Properties' box, 'Disable desktop composition'.

Your Cliffs of Dover 'Launcher' Application (.exe) file is located wherever it was on your system you installed Steam, along the path Steam/steamapps/common/il-2 sturmovik cliffs of dover.