Rick,
I wrote something about showing the original master on my post about this (serious) problem...I first noticed that in the Aperture filmstrip the image looked good while the "big" one wasn't ...I thought the preview was missing (or broken) so I forced a regenerate preview...nothing, ok in the filmstrip but still bad in the viewer....so I decided to press M willing to "see" my original image like it was in the filmstrip...well, the first time I hit M the image showed correctly for one second while "loading" was on...then "loading" went off and my original master image (as indicated by the label on top of the image) showed with magenta tint.
So I hit again M and the image didn't changed at all (apart from the "Master Image" label that went, of course, off)...I then hit once again M and this time no waiting, no loading, no flashing with a correct image showing...just the magenta version of the image.
What happened with my last import (last sunday) was that once imported and once preview were generated I still had filmstrip images ok and magenta version in the viewer....as soon the "processing" started all my filmstrip images were "contaminated" by magenta.
So....what are we facing here? A serious problem I believe.
Playing with on-screen proofing, color profiles, etc....doesn't change a thing, at least in my specific case...but turns out I'm not alone, sadly.
Best regards,
Alberto