I am experiencing difficulty with the spot healing brush tool. I have it set on normal blending mode and sample all layers. Have tried various hardness, size, angle etc. Have reset that tool and all tools. What I am experiencing is when I click on the spot I want to select, the brush selects an area away from where I click. It also only goes in a straight line and right angles.......wierd......and no the cap lock is not on.:) Can someone please help? I edit images of jewelry and use this tool alot to remove reflections.