Have been using Elements. Downloaded PLP X today and was "playing around with it." I grossly over sharpened an image and haven't figured out how to undo what I didn't want to do. I thought these processing SW programs had "histories" where you could return to original image status? Is there a way to undo this? Assume would have to be done using PSP X since that is the SW I did this in? Any help most appreciated. Thanks.