After downloading my assignment from yesterday, I started to edit the images through PhotoMechanic (4.3.8 on Mac). The majority of the images were fine but much to my dismay, a handful of images looked funky. Some were overexposed, some underexposed, some color shifted, some black, some looking like my camera's sensor went totally nuts. Well, you get the point. BUT, upon clicking on the aperture icon to enlarge the image, everything went back to normal. What could be causing this? Having trusted PM for years, I thought that my camera had blown it's sensor until I enlarged the image. Help me out here....thanks.