Nath, the problem with that image is that what we have in AH is a 90 degree view. The camera used to take that picture probably had a much narrower field of view, and so the bars look straight. 90 degrees is roughtly equivalent to a 16mm focal length IIRC, that picture might be taken with a 35mm or so.
This effect is more and more pronounced the closer you get to the edge, that's why the side bars are really huge in the front view, but in the 45 degree right/left views they look right (since they're in the middle of the picture, where distortion is smallest). That windshield could probably be adjusted a bit, but I think it's pretty close as it is now. I'll have to check, but I suspect that if you zoom in to get a narrower field of view the posts get less bent (or they should, judging from the photo, as your "focal length" would "go up" when zooming in).
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Rickenbacker (Ricken)
-ISAF-
the Independent Swedish Air Force