I've been having this with a GTX570. Tried a fresh install of driver, older drivers and about a thousand CoD tweaks.
The only solution I can find is to alter the DX render in the config from '10_0' to '10_1'. I think what this really does is force the game to run in DX 9 (?) so you get slower performance, strange lines in the sea etc.
I'm on an 850W PS so no issue there, temps are good across the board and the other sims I have run great. Conclusion is its a CoD issue so its on the shelf for now, I've got fed up with fiddling rather than flying.
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