I am having the darndest problem that I've never encountered before. I am using the cloning tool in CS5 and I am trying to stamp clone one part of the photo and clone it to another part of the photo. The problem is that after I option click and then drag it to the part I need, dark spots show up instead? What is wrong here? Below is an example. Thanks.
I am running Photoshop CS5 for Mac with the latest updates.
We can't quite see it in your image, but have you got the Blend mode for the clone tool set for Difference perhaps? Otherwise go to the dropdown top let of Options bar, and see if you have any presets for that tool, and reset it. If none of that helps, time to reset the Preference file (Shift Cmd Opt as you open Photoshop)