Here is the way I got it working if I recall correctly.. It took a bit of time but I got it going in the end
1 Rolled back graphic drivers to 296.10 (dunno if it helps)
2 Verified the game cache via steam to roll back to 1.05 version
3 Deleted all the files and the shader folder in documents/1c SoftClub/il-2 stormovik cliffs of dover/cache
4 Installed the beta patch files
5 Installed the updated core.dll file from
http://forum.1cpublishing.eu/attachm...6&d=1336833423
6 Started the game and went into options and changed "full screen" to "pseudo fullscreen" in video options and restarted and then run a single player mission to test.