Apple please rework the auto exposure adjustment

90% of the time, the result is worse than before. It seems, Aperture's auto exposure adjustment is based on an average of the whole picture. So in its effort to get a well distributed histogram over the whole range, it happily blows the brighter parts of the picture.
I usually try to recover most of the highlights except small reflections etc. and then lighten up shadows and mid-tones with the appropriate tools to get a well exposed picture.
So I would prefer, that the auto exposure adjustment would be more sensitive towards blown highlights especially larger contiguous areas of highlights.
If you can't find an algorithm that works reliable, probably give me two separate auto exposure adjustment buttons. One adjusts to overall good exposure, like it is currently, the other tries to prevent blown highlights.
An even more advanced auto exposure adjustment would be, to combine the current exposure adjustment with some shadow and mid-tones adjustment, in case the exposure adjustment with preserving highlights led to an underexposed image.
I don't expect this to give perfect results, but it would be a real timesaver to use it as a starting point for manual fine tuning.
Not to bash Aperture but to encourage you to improve it: ACR's auto exposure mechanism is doing a much better job than Aperture's current one.
Peter
Quad G5   Mac OS X (10.4.8)   GT 7800

Well, obviously all your photos are already exposed perfectly!
(Seriously: when you say "nothing happens", do you mean absolutely nothing? Does the "Exposure" panel's check-box become checked after you hit the Auto button? If so, then it made SOME adjustment (though perhaps not enough for you to notice, see initial comment!) If not, then yeah, something is not working right for you.

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