Seems all of a sudden I can't view the images I've edited in Aperture. Whenever I click on one that's been edited, it shows up briefly and dissapears. If I click one I haven't touched, it shows up fine. Now, if I click and try to edit the image it does this: Squares or severe, total image corruption occurs unless I undo the changes. It seems to only do it with the Shadow/Highlight tool. Any idears aside from a reinstall? Cause I'd probably just use CS3 and dump Aperture.