How about DX11 patch work with that?

did it work with the crossfire before?

I do have an idea of what went wrong. I just helped another fellow the other day on ATAG, he was having the same problem. He extracted the core.dll into main folder of CLOD when the correct path to place it it is:

WhateverDRIVE:\Program Files (x86)\Steam\steamapps\common\il-2 sturmovik cliffs of dover\parts\core ---->place core.dll here

I got a problem too with the Beta 1.06...
The game works perfectly in the menu, but when I come in the "brifeing page", I got no maps, and if want to fly, my desktop appear but the sound and the commands works...
Does any one have this problem? or see where does it came?

I have install the Beta and the Core fix (I think I did it well)

I'm on:
Win 7 64 bit
Intel I7 Q720 1.6GHz or 2.8GHz with the turbo
RAM 6G
NVIDIA GeForce GTS 350M (directX 11)

what is your average framerate on what settings ?