If I'm working on a new document that hasn't been saved yet, and I insert some pictures and then adjust the Brightness or Contrast, I can see the image change in real time and make adjustments before I close the window. But after the document's been saved and closed, the next time I open it to work on it the images will only change after I've made my adjustments and closed the window. I have to keep opening and closing the window sometimes many times to get it just right.

This is driving me nuts. Has anyone else experienced this or know why it does it??