Strange pixeles in RAW image

Hello.
I've been comparing Aperture with other programs in order to take the decision to buy it.
But last week I fund this particular issue.
I was editing this RAW file:
http://homepage.mac.com/joakod/DSC_0022.NEF (5.2 MB)
And noticed some strange pixels and changed colors on the top of the cat's eye, this is a screenshot of it:
http://homepage.mac.com/joakod/defecto.png
If I open the same file on Lightroom the pixels are not there:
http://homepage.mac.com/joakod/sindefecto.png
This is without any modification to the RAW file.
What is the problem here? Is it an issue with Aperture? I don't think its an issue with the camera because the photo looks good in any other program.
My computer is a MacBook Pro with all the patches applied and I shoot with a Nikon D50.
Thank you very much.
Message was edited by: joaquin.durand

David, I think he is referring to this effect (at least, this is what is happening to me). Look at this two screen captures.
http://amrosario.com/eyelash_aperture.jpg
http://amrosario.com/eyelash_lightroom.jpg
The Lightroom version has been sharpened to see if I could duplicate the effect that is happening in the Aperture version, which is why it looks a little over-sharpened. The Aperture version is completely messing up the eyelashes in this image, and I find that it does that a lot with hair and other high frequency patterns, where Lightroom (and ACR and Nikon Capture) don't show this effect at all. It's almost impossible to fix in PS without a lot of retouching.
Aperture is creating all sorts of random pixels as well as colorizing bright highlights on hair and other fine details. Apple really needs to work on their RAW processing engine.
Antonio

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