[8FS_Bulau]

I seem to recall something about this...it has to do with one of the two types of SLI mode, Alternate Frame and Split Frame, but I can't recall which is the culprit. Apparently one of those causes the artifact you are seeing, so try changing the SLI mode in your driver panel and see if it does the trick.

Your frame rates may go down a bit, because I think the mode that works for IL-2 Perfect Landscape is the slower of the two.