I'm new to PS, so please bear with me. When I click on the targed adjustment tool (in hue/saturation adjustment layer) and then try and click on something, for ex. teeth, everything disappears and the cursor goes to the bottom right corner (show desktop). When I slide the cursor back up everything comes back up when I try and do it again the same thing happens. I've tried multiple times and just can't seem to get it to work. Any ideas?